Classic Nanaimo Bars

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Rich, chocolatey, and unapologetically indulgent, Classic Nanaimo Bars are the no-bake treat your dessert table has been missing. These Canadian-born confections are made of three irresistible layers: a nutty chocolate-coconut base, a creamy custard buttercream filling, and a glossy chocolate ganache topping. Whether you’re hosting a holiday party or just craving something sweet, these bars deliver comfort and elegance in every bite.

The beauty of Nanaimo Bars lies not just in their taste, but in their texture. Each layer offers its own delightful contrast—the crunchy base, the smooth custard middle, and the firm snap of the chocolate top. They store beautifully and slice cleanly, making them as practical as they are indulgent.

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Preparation Phase & Tools to Use

Before diving into the creation of these decadent bars, having the right tools on hand will make your process seamless:

• 8×8-inch baking pan: This is the ideal size for layering the bars evenly and achieving the traditional Nanaimo Bar thickness.
• Parchment paper: Helps lift the bars out of the pan easily once they’re set.
• Double boiler or heat-safe bowl over simmering water: Crucial for gently melting chocolate and butter without scorching.
• Spatula: Ensures smooth and even layers, especially for the custard and chocolate topping.
• Electric mixer: Makes quick work of creaming the custard filling to a silky texture.
• Measuring cups and spoons: Precision matters in achieving the perfect texture for each layer.

With these tools, you’re set up for sweet success. Now let’s get into the delicious details of what makes these bars so crave-worthy.

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Ingredients for the Classic Nanaimo Bars

• Graham cracker crumbs: This forms the base and adds a slightly sweet, grainy texture that pairs beautifully with the rich chocolate.
• Unsweetened cocoa powder: Delivers the deep chocolate flavor that anchors the base layer.
• Granulated sugar: Adds the necessary sweetness to balance the cocoa’s bitterness.
• Butter: Used in every layer, it provides richness, structure, and that melt-in-your-mouth feel.
• Egg: Helps bind the base layer and gives it a chewy consistency once set.
• Sweetened shredded coconut: Adds texture and sweetness to the base, giving it that signature chewy crunch.
• Chopped walnuts or almonds: Offer a nutty crunch that complements the base’s flavors and adds contrast.
• Vanilla custard powder (like Bird’s): The star of the middle layer, it gives that iconic yellow hue and custard flavor.
• Powdered sugar: For a smooth, creamy filling that holds its shape without being too sweet.
• Heavy cream or milk: Thins out the custard filling to the perfect creamy texture.
• Semi-sweet chocolate chips: Melted for the top layer, they provide a rich chocolate finish.

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How To Make the Classic Nanaimo Bars

Step 1: Build the Base

In a heat-safe bowl over simmering water, melt the butter, sugar, and cocoa powder together. Stir until smooth, then slowly whisk in the beaten egg. Cook for 1–2 minutes until thickened. Remove from heat and mix in the graham cracker crumbs, coconut, and chopped nuts. Press this mixture firmly into a parchment-lined 8×8-inch pan. Chill for 10–15 minutes.

Step 2: Make the Custard Layer

In a clean bowl, beat together softened butter, powdered sugar, custard powder, and heavy cream until smooth and fluffy. Spread evenly over the chilled base layer. Return to the fridge to set for 20–30 minutes.

Step 3: Top with Chocolate

Melt the semi-sweet chocolate with a bit of butter in a double boiler or microwave (short bursts, stirring in between). Pour over the custard layer and tilt the pan to spread evenly. Tap the pan lightly to remove bubbles. Chill again until the chocolate is firm, about 30 minutes.

Step 4: Slice and Serve

Once set, remove the entire block from the pan using parchment paper. Use a hot knife to cut clean squares—wipe the blade between cuts for best results.

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How to Serve and Store Classic Nanaimo Bars

Serve these bars slightly chilled or at room temperature for the best texture—where the chocolate top gives a satisfying snap and the custard stays creamy but firm. A small square goes a long way, so slice into 16 or even 25 small squares for bite-sized treats perfect for dessert platters, tea parties, or holidays.

For storing, place them in an airtight container with parchment between layers. They keep well in the fridge for up to 1 week and freeze beautifully for up to 2 months. If frozen, let them thaw in the fridge overnight before serving.

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Frequently Asked Questions

What is custard powder, and can I substitute it?

Custard powder (like Bird’s brand) is a dry mix used to make custard sauce and is essential for the signature flavor and color of Nanaimo Bars. If unavailable, you can substitute with instant vanilla pudding mix in a pinch.

Can I use other nuts besides walnuts or almonds?

Absolutely! Pecans or hazelnuts work wonderfully. Or leave out nuts altogether for a nut-free version (just increase graham crumbs slightly).

My chocolate topping cracks when cutting. How do I fix this?

Use a hot knife! Dip a sharp knife in hot water and dry it before slicing. This helps cleanly cut through the firm chocolate layer without cracking.

Can I make Nanaimo Bars ahead of time?

Yes! In fact, they’re best when made a day ahead, giving all the layers time to firm up and flavors to meld. Store in the fridge until ready to serve.

Is this recipe gluten-free?

Not as written. But you can make it gluten-free by using gluten-free graham crackers and ensuring your custard powder and other ingredients are certified gluten-free.

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Want More Dessert Bar Ideas?

If you’re loving the rich layers of these Classic Nanaimo Bars, don’t miss these other decadent treats from Life With Olivia:

• Paula Deen’s 5-Minute Fudge for a fast, fudgy fix.
• Strawberry Crunch Pound Cake if you want something fruity and nostalgic.
• Easy Texas Turtle Sheet Cake with caramel, pecans, and serious chocolate vibes.
• Brownie Mix Cookies for the easiest rich chocolate cookies you’ll ever bake.
• No-Bake Mini Banana Cream Pies for a creamy twist on another classic.

Explore more of my favorite desserts and everyday inspiration on my Pinterest: Life With Olivia.

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Save This Recipe for Later

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.

Have you tried making your own twist on Nanaimo Bars? Maybe added espresso to the custard or used white chocolate on top? I’d love to hear how yours turned out.

Leave a comment below and let’s keep the baking creativity flowing. Questions and swaps welcome!

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