Traditional Canadian Nanaimo Bars

🕒 Prep: 30 min
🔥 Cook:
🍽 Serves: 16
★★★★★
Be the First to Review!

If you're in the mood for a sweet treat that's uniquely Canadian, look no further than the classic Nanaimo Bars. These no-bake delights feature a rich combination of flavors and textures, bringing together chocolate, coconut, and a creamy custard layer.

Traditional Canadian Nanaimo Bars

This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases.

Ingredients for Traditional Canadian Nanaimo Bars

Ingredients for Traditional Canadian Nanaimo Bars

The base of our bars starts with graham cracker crumbs, giving it structure and a mild sweetness. The unsalted butter binds everything together and adds richness. A touch of granulated sugar sweetens the mix just right, while cocoa powder brings in that essential chocolatey note. For texture, sweetened shredded coconut and chopped walnuts add a delightful crunch and flavor.

The middle layer gets its creamy sweetness from powdered sugar and a special ingredient — vanilla custard powder — that thickens and flavors the custard. More butter and heavy cream ensure a rich and smooth consistency.

Finally, the top layer features semi-sweet chocolate, melted with unsalted butter for a glossy finish that ties all the layers together beautifully.

Why This Traditional Canadian Nanaimo Bars Works

In the bottom layer, the melted butter soaks into the graham crumbs, coconut, and walnuts. Sugar and cocoa fill the tiny gaps. Once pressed down, everything packs tight, almost like wet sand. After a short chill, the butter firms up again, so the base stays solid and doesn’t crumble when cut.

For the middle layer, powdered sugar and custard powder mix with soft butter and cream. As they’re beaten together, the sugar and custard drink up the cream and swell a bit, and the butter spreads through the whole bowl. The mixture turns thick and smooth, almost like a soft fudge, and sits neatly on top of the cold base without sinking in.

When warm chocolate and butter are poured over the cool custard layer, the chocolate stays on top and spreads in a thin sheet. In the fridge, both the butter in the chocolate and the butter in the other layers harden. After a couple of hours, all three layers are firm enough to cut, but still soft enough to bite through in one even bar.

Traditional Canadian Nanaimo Bars Tips & Tricks

  • Use room temperature butter for the custard layer for easier mixing and a smoother texture.
  • Press the base layer firmly to ensure it holds together well when cutting.
  • If you find the chocolate topping too thick, add a splash of milk to thin it out slightly.

Mistakes To Avoid

Spreading the custard layer over a warm base makes the filling melt and loosen. Instead of staying thick and fluffy, it starts to sink into the crumb layer. The bars end up with a thin, greasy middle that doesn’t hold a clean shape when cut.

Using melted or very soft butter in the custard layer turns it runny. The sugar and custard powder never really thicken it, so it slides around under the chocolate. Once chilled, the middle layer sets unevenly and can separate from the base when sliced.

Pouring hot chocolate straight onto the custard causes trouble. The heat softens the creamy layer, so the chocolate and custard can swirl together and create bald spots and streaks. After chilling, the top looks patchy and the layers don’t stay clean and distinct.

Skipping the firm pressing of the base leaves it loose and crumbly. When the bars are cut, the bottom layer breaks apart and drops crumbs everywhere. The neat squares turn into messy chunks that won’t hold together in straight layers.

Equipment Used:

Mixing bowls, Baking dish, Spatula

Ingredients

  1. 1 cup graham cracker crumbs
  2. 1/2 cup unsalted butter, melted
  3. 1/4 cup granulated sugar
  4. 5 tablespoons cocoa powder
  5. 1 cup sweetened shredded coconut
  6. 1/2 cup chopped walnuts
  7. 2 cups powdered sugar
  8. 2 tablespoons vanilla custard powder
  9. 1/4 cup unsalted butter, softened
  10. 3 tablespoons heavy cream
  11. 4 ounces semi-sweet chocolate
  12. 2 tablespoons unsalted butter

Step-by-step Instructions

  1. 1. In a medium bowl, combine graham cracker crumbs, melted butter, granulated sugar, cocoa powder, shredded coconut, and chopped walnuts. Mix until well combined.
  2. 2. Press the mixture firmly into the bottom of an ungreased 9x9-inch baking dish to form the base layer. Chill in the refrigerator for 10 minutes.
  3. 3. In a separate bowl, beat together powdered sugar, custard powder, softened butter, and heavy cream until smooth and creamy. Spread evenly over the chilled base layer.
  4. 4. Melt semi-sweet chocolate and 2 tablespoons of butter in a double boiler or microwave, stirring until smooth. Pour over the custard layer and spread evenly with a spatula.
  5. 5. Chill the bars in the refrigerator for at least 2 hours or until the chocolate topping is set. Cut into squares before serving.

Frequently Asked Questions

Can I make these bars nut-free?
Absolutely! Simply omit the chopped walnuts, or replace them with extra coconut or graham cracker crumbs.
What can I substitute for custard powder?
If you can't find custard powder, vanilla pudding mix is a good alternative.
How long do these bars keep?
They can be stored in an airtight container in the refrigerator for up to a week.

Serving Ideas for Traditional Canadian Nanaimo Bars

Nanaimo Bars are delightful on their own, but pairing them with a scoop of vanilla ice cream can elevate the experience. For a bit of contrast, serve them alongside a tangy fruit salad. They also make a great addition to a dessert platter with a variety of treats.

Ratings and Comments

Your feedback helps other cooks — thank you!

This recipe is for informational purposes only. Always follow proper food safety practices, cook foods to safe internal temperatures, and store leftovers appropriately. Results may vary.