As I dove into the summer produce at my local market, the vibrant rhubarb caught my eye, demanding a spot in my baking plans. That’s when I decided to experiment with a twist on a classic treat by whipping up these delightful rhubarb macadamia blondies. This recipe is not only a celebration of the tangy sweetness of rhubarb but also a way to indulge in the rich creaminess that macadamia nuts bring to the table. With a quick prep time and the nostalgic essence of homemade desserts, these blondies are perfect for any occasion. Plus, they’ll impress your friends and family without requiring hours in the kitchen. Are you ready to dive into this deliciously unique dessert?

Why Make Rhubarb Macadamia Blondies?
Sweet & Tart Bliss: The fusion of tangy rhubarb with creamy macadamia nuts creates a luscious experience that captivates your taste buds.
Easy to Prepare: With minimal prep time, these blondies allow you to whip up a dessert that’s as simple as it is impressive.
Crowd-Pleasing Delight: Everyone will love this unique twist on traditional blondies—perfect for gatherings or a cozy weekend treat!
Versatile Flavors: Feel free to swap in different nuts or fruits to make it your own, adding your personal touch every time.
No Fuss Cleanup: One-bowl mixing means less mess, making baking a breeze! Whether you’re a seasoned chef or just starting out, you’ll find joy in making these delightful bars.
Rhubarb Macadamia Blondies Ingredients
For the Blondies
• Unsalted Butter (100g) – Adds richness and moisture; you can substitute with margarine for a dairy-free option.
• White Chocolate (100g + 150g extra) – Provides sweetness and a creamy texture; feel free to switch to milk chocolate for a less sweet flavor profile.
• Brown Sugar (1 cup) – Sweetens and gives a toffee-like flavor; light or dark brown sugar can be used interchangeably.
• Free-Range Eggs (2) – Binds ingredients and adds moisture; no direct substitute recommended as eggs are essential for this recipe.
• Plain Flour (3/4 cup) – Forms the structure of the blondies; whole wheat flour can be a healthier alternative but may alter texture.
• Australian Macadamias (1/2 cup, roughly chopped) – Adds crunch and flavor; pecans or walnuts can be used as replacements.
• Rhubarb (3 stalks, cut into 2cm pieces) – Provides tanginess and moisture; fresh strawberries or other tart fruits can be swapped for a similar effect.
Optional Topping
• Additional White Chocolate (for sprinkling) – Enhances sweetness on top of the bars; great for a more indulgent treat!
• Extra Macadamias (for garnish) – Adds an appealing crunch and visual appeal to your blondies.
Experience the joy of baking these rhubarb macadamia blondies and savor the unique flavor combination that will impress everyone!
Step‑by‑Step Instructions for Rhubarb Macadamia Blondies
Step 1: Prepare the Oven and Pan
Start by preheating your oven to 160°C fan-forced (180°C conventional). While the oven warms up, take a 20 x 30 cm lamington pan, greasing it well and lining the base and sides with baking paper. This ensures your rhubarb macadamia blondies release easily after baking.
Step 2: Melt Butter and Chocolate
In a medium saucepan over low heat, melt 100g of unsalted butter until it becomes foamy and lightly golden; this should take about 3-5 minutes. Once melted, remove the pan from the heat and stir in 100g of white chocolate. Mix until smooth, then allow the mixture to cool for around 10 minutes.
Step 3: Beat Sugar and Eggs
In an electric mixer, combine 1 cup of brown sugar with 2 free-range eggs. Beat the mixture on medium speed for about 3-5 minutes until it thickens and becomes pale in color. Gradually blend in the cooled butter and chocolate mixture, ensuring all ingredients are well incorporated.
Step 4: Combine Dry Ingredients
Gently fold in 3/4 cup of plain flour into the wet mixture using a spatula, being careful not to overmix as this could lead to denser blondies. Once combined, add 1/2 cup of roughly chopped macadamias and the chopped rhubarb, folding them in until dispersed evenly through the batter.
Step 5: Pour and Top the Batter
Pour the blondie batter into the prepared pan, smoothing the top with a spatula for an even surface. To enhance flavor and texture, sprinkle the remaining chocolate, macadamias, and additional rhubarb over the top of the batter, allowing a beautiful finish for your rhubarb macadamia blondies.
Step 6: Bake the Blondies
Place the pan in the preheated oven and bake for 35-40 minutes. Check for doneness by inserting a toothpick in the center; it should come out clean or with a few moist crumbs attached. The top should be golden brown, indicating your blondies are ready to come out.
Step 7: Cool and Slice
Once baked, take your blondies out of the oven and let them cool in the pan for 1 hour. After cooling, carefully lift the blondies out by the baking paper edges, slice them into squares, and transfer them to an airtight container for storage or immediate enjoyment.

Expert Tips for Rhubarb Macadamia Blondies
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Don’t Overmix: When adding the flour, fold gently to maintain a light texture. Overmixing can lead to dense blondies that lack that signature chewiness.
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Cool Butter Mixture: Allow the melted butter and chocolate to cool for about 10 minutes before mixing with eggs. This prevents scrambling, ensuring a smooth blend.
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Use Fresh Rhubarb: For the best flavor and texture, use fresh rhubarb. If using frozen, make sure it’s thoroughly thawed and well-drained to avoid excess moisture in the batter.
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Check Doneness Carefully: A toothpick should come out clean or with a few moist crumbs. Don’t wait until it’s fully dry to avoid a dry texture in your rhubarb macadamia blondies.
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Store Wisely: Keep your blondies in an airtight container at room temperature for up to 3 days, or refrigerate for a week to maintain freshness.
How to Store and Freeze Rhubarb Macadamia Blondies
Room Temperature: Keep your blondies in an airtight container at room temperature for up to 3 days to maintain their delightful texture and flavor.
Fridge: For extended freshness, store them in the fridge for up to a week; just be sure to wrap them well to prevent drying out.
Freezer: You can freeze the blondies for up to 3 months. Wrap individual bars tightly in plastic wrap, then place them in a freezer bag for optimal preservation.
Reheating: To enjoy your frozen rhubarb macadamia blondies, simply thaw them in the fridge overnight and warm gently in the microwave for 10-15 seconds before serving.
Make Ahead Options
These Rhubarb Macadamia Blondies are perfect for busy home cooks looking to save time! You can prepare the batter up to 24 hours in advance; simply mix all the ingredients and store the batter in an airtight container in the refrigerator. Additionally, you can chop the rhubarb and macadamia nuts up to 3 days ahead to keep the flavors fresh while saving you some prep time. When you’re ready to bake, just pour the chilled batter into your prepared pan and bake for the usual 35-40 minutes. This way, you’ll have delicious, homemade blondies with minimal last-minute effort, allowing you to enjoy a sweet treat without a time crunch!
What to Serve with Rhubarb Macadamia Blondies
Indulging in these delightful blondies opens the door to a world of delicious pairings that elevate your dessert experience.
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Creamy Vanilla Ice Cream: The cool creaminess of vanilla ice cream perfectly complements the chewy blondies, balancing the tartness of rhubarb.
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Lightly Sweet Whipped Cream: A dollop of fresh whipped cream adds a cloud-like texture, enhancing the richness of the blondies and making each bite pure bliss.
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Fresh Berry Compote: A tangy berry sauce brightens the flavors of the blondies, adding a fresh element that contrasts beautifully with the sweetness of white chocolate.
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Toasted Coconut Flakes: Sprinkle some toasted coconut on top for an added crunch and tropical twist that pairs wonderfully with the nuttiness of macadamias.
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Hot Cup of Earl Grey Tea: The floral notes of Earl Grey harmonize with the blondies’ flavors, creating a soothing pairing perfect for afternoon indulgence.
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Zesty Lemonade: A refreshing glass of lemonade offers a sweet and citrusy counterpoint, cutting through the richness of the blondies in a delightful way.
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Rich Espresso or Coffee: The bold flavors of espresso enhance the sweetness of the blondies while providing a lovely contrast to the creamy texture.
Explore these pairings and turn your dessert into a charming culinary event everyone will remember!
Rhubarb Macadamia Blondies Variations
Get creative and elevate your delicious rhubarb macadamia blondies with these fun twists and substitutions!
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Fruit Twist: Replace rhubarb with chopped apples or pears for a cozy, fruity variation that’s equally satisfying. This simple swap can add a sweet crunch, making each bite delightful.
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Nutty Alternatives: Experiment with different nuts like pecans or cashews to introduce exciting flavors and textures. Each nut offers a distinctive taste, so choose what suits your palate best!
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Flavor Boost: A pinch of cinnamon or cardamom can add a warm spice element to your batter. These aromatic spices will envelop your blondies in an inviting aroma that’s hard to resist.
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Choco-Lover’s Delight: If you’re a chocolate fan, switch half of the white chocolate for dark chocolate for a richer flavor. This swap creates a decadent experience that balances beautifully with the tart rhubarb.
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Gluten-Free: Substitute plain flour for a gluten-free blend to accommodate dietary needs without sacrificing taste. You won’t miss the gluten when you savor these delightful blondies!
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Dairy-Free: Use coconut oil instead of butter and dairy-free chocolate chips to make these blondies suitable for dairy-free diets. They’ll still be wonderfully rich and tasty!
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Zesty Kick: Add the zest of one lemon to the batter for a refreshing citrus note that complements the rhubarb beautifully. It’s a fantastic, light twist that brightens up this dessert.
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Bourbon Infusion: For an adult twist, a splash of bourbon can be mixed into the batter, enhancing the flavor complexity. Just remember to keep it light for a kid-friendly version!
With these simple adjustments, your rhubarb macadamia blondies can easily become your personal masterpiece. Whether you’re trying out a gluten-free version or infusing new flavors, these variations will surely delight your taste buds! If you’re curious about more ways to customize your treats, don’t hesitate to check out our helpful tips on baking basics and seasonal fruit swaps that can elevate any dessert!

Rhubarb Macadamia Blondies Recipe FAQs
How do I know if my rhubarb is ripe?
Absolutely! When selecting rhubarb, look for firm, crisp stalks that are vibrant in color, typically a bright pink or deep red. Avoid any stalks with dark spots or excessive wilting, as these indicate age and potential spoilage. Fresh rhubarb will have a slightly waxy and shiny surface.
How should I store leftover blondies?
To keep your rhubarb macadamia blondies at their best, store them in an airtight container at room temperature for up to 3 days. If you want to extend their life, refrigerate them for up to a week; just ensure they’re wrapped well to prevent them from drying out.
Can I freeze rhubarb macadamia blondies?
Absolutely! To freeze your blondies, wrap each piece tightly in plastic wrap to prevent freezer burn, then place them in a freezer-safe bag or container. They can be frozen for up to 3 months. When you’re ready to enjoy them, simply thaw in the fridge overnight, and for a warm treat, microwave each portion for 10-15 seconds before serving!
What should I do if my blondies turned out too dense?
If your blondies are denser than you expected, it may have been due to overmixing the batter after adding the flour. Next time, gently fold in the flour just until combined. Also, ensure you’re not baking them too long. A toothpick should come out clean or with a few moist crumbs for the perfect chewy texture.
Are these blondies safe for pets?
It’s important to avoid giving any desserts containing chocolate or nuts to pets, especially dogs. Macadamia nuts can be particularly toxic to them. If you’re sharing with furry friends around, consider making a pet-safe version without any chocolate or nuts as a special treat just for them!
Can I make substitutes for the ingredients?
Very! If you’re looking to modify the recipe for dietary restrictions, here are some suggestions: use margarine instead of butter for a dairy-free option, replace white chocolate with dairy-free chocolate chips, or swap the flour for whole wheat. Additionally, feel free to mix up the nuts; pecans or walnuts work beautifully too!

Delicious Rhubarb Macadamia Blondies You'll Love to Bake
Ingredients
Equipment
Method
- Step 1: Prepare the Oven and Pan - Preheat your oven to 160°C fan-forced (180°C conventional) and prepare a 20 x 30 cm lamington pan.
- Step 2: Melt Butter and Chocolate - In a medium saucepan, melt 100g of unsalted butter over low heat; then stir in 100g of white chocolate.
- Step 3: Beat Sugar and Eggs - In an electric mixer, beat 1 cup of brown sugar with 2 eggs until thick and pale in color.
- Step 4: Combine Dry Ingredients - Fold in 3/4 cup of plain flour, 1/2 cup of macadamias, and the rhubarb.
- Step 5: Pour and Top the Batter - Pour the batter into the pan and sprinkle with remaining chocolate, macadamias, and rhubarb.
- Step 6: Bake the Blondies - Bake for 35-40 minutes, check for doneness with a toothpick.
- Step 7: Cool and Slice - Let cool for 1 hour, then slice and store or enjoy immediately.

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