Nanaimo bars are B.C.'s most famous export: three no-bake layers of chocolate-crumb base, vanilla custard filling, and a glossy chocolate top. Want a nanaimo bars recipe easy enough for a beginner but polished enough for a bake sale? These ten tips cover every layer.
Named for the harbour city of Nanaimo, these bars have been a Canadian bake-sale staple since the 1950s. No oven needed, about $10 in ingredients, and they keep for days — if your family lets them last that long.
Photo: Craig Dugas via Wikimedia Commons
Table of Contents
- 1. Press the Base Down Firmly
- 2. Chill Between Every Layer
- 3. Use Real Custard Powder
- 4. Beat the Custard Layer Silky Smooth
- 5. Let the Chocolate Cool Slightly
- 6. Score the Top Before It Fully Sets
- 7. Cut With a Hot, Dry Knife
- 8. Cut Them Small — They're Rich
- 9. Try the Fun Variations
- 10. Serve Chilled With Coffee
1. Press the Base Down Firmly
Melt 125 g of butter with 50 g of sugar and 30 g of cocoa, whisk in one beaten egg until it thickens, then stir in 200 g of graham crumbs, 100 g of shredded coconut, and 60 g of chopped walnuts. Press this firmly into a parchment-lined 20 cm square pan.
Use the bottom of a measuring cup to compact it — a loose base crumbles when you cut the bars. Really lean into it; the base should feel solid and even before it goes into the fridge.
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2. Chill Between Every Layer
Refrigerate the pressed base for at least 20 minutes before adding the custard, and chill the custard layer for another 20 before the chocolate goes on. Each layer needs to be firm enough to support the next.
Skipping the chill is the top reason layers slide and smear into each other. The whole recipe is just assembly and waiting — the fridge does the real work. Our winter baking ideas has more no-bake treats for busy weeks.
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3. Use Real Custard Powder
Bird's custard powder is the authentic choice — it gives the middle layer its signature pale-yellow colour and vanilla flavour. Instant vanilla pudding mix works in a pinch, but side-by-side the difference is obvious.
You only need 30 g (about two tablespoons) for the whole batch. Find it in the baking aisle of Loblaws or any British import shop; one tin lasts through many batches.
Photo: Joy via Wikimedia Commons
4. Beat the Custard Layer Silky Smooth
Beat 125 g of soft butter with 250 g of icing sugar, the custard powder, and 30 mL of milk until completely smooth and fluffy — a full two minutes with an electric mixer. Any lumps now become lumps forever.
Spread it gently over the chilled base with an offset spatula, taking care not to drag up crumbs. An even custard layer means every bite has the same perfect ratio of the three layers.
Photo: Joy via Wikimedia Commons
5. Let the Chocolate Cool Slightly
Melt 120 g of semi-sweet chocolate with 30 g of butter until glossy, then let it cool for five minutes before pouring. Chocolate straight off the heat is hot enough to melt the custard layer into swirls.
Pour it in the centre and tilt the pan to spread — don't drag a spatula across it, which can pull up the soft custard. A thin, even coat sets up snappier and looks more professional.
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6. Score the Top Before It Fully Sets
Here is the trick the pros use: after about 30 minutes in the fridge, when the chocolate is firm but not hard, score your cut lines lightly with a knife. This is the secret to crack-free slices.
Cutting fully-set chocolate shatters it into shards. Scoring first lets you follow the lines later with a hot knife for bakery-clean squares every time.
Photo: Alex Lozupone via Wikimedia Commons
7. Cut With a Hot, Dry Knife
Once fully chilled (at least two hours, overnight is better), run a large sharp knife under hot water, dry it completely, and cut along your scored lines. Repeat the hot rinse between every few cuts.
The heat melts through the chocolate cleanly instead of cracking it. Wipe the blade on a damp cloth as you go so custard doesn't smear across the chocolate tops.
Photo: Alex Lozupone via Wikimedia Commons
8. Cut Them Small — They're Rich
Cut the 20 cm pan into 25 small squares, not 16 big ones. Nanaimo bars are intensely rich — butter in every layer — and a two-bite square is the perfect serving.
Small squares also look better on a platter and stretch further at bake sales. Nobody has ever complained that a Nanaimo bar was too small; plenty have regretted taking too big a piece.
Photo: Simon Villeneuve via Wikimedia Commons
9. Try the Fun Variations
Once you master the classic, the variations are endless: mint extract in the custard, peanut butter instead of custard, or a mocha-cappuccino top like the ones sold in Toronto patisseries. The structure stays the same; only the flavours change.
Keep the ratios identical when you experiment — the base, custard, and chocolate proportions are what make the layers behave. Write down what you change so you can repeat your favourites.
Photo: Rachel Kramer Bussel via Wikimedia Commons
10. Serve Chilled With Coffee
Nanaimo bars taste best cold, straight from the fridge — the layers are firm, the chocolate snaps, and the custard is cool and creamy. Let them sit out no more than 30 minutes before serving.
Pair them with a strong coffee or a glass of cold milk; the bitterness balances all that sweetness beautifully. They also freeze for up to three months — see our freezer meals for winter guide for more make-ahead ideas.
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Frequently Asked Questions
Do Nanaimo bars need to be refrigerated?
Yes. The custard layer is butter-based and softens at room temperature. Keep them in the fridge and serve chilled.
Why did my chocolate top crack when I cut it?
It was cut after fully setting. Score the top after 30 minutes of chilling, then finish cutting with a hot knife once firm.
Can I make Nanaimo bars without custard powder?
Instant vanilla pudding mix works, but the flavour is less authentic. Real custard powder is worth finding for the classic taste.
How long do Nanaimo bars keep?
Five days in the fridge in an airtight container, or three months in the freezer with parchment between layers.
Are Nanaimo bars gluten-free?
Not the classic version, but gluten-free graham crumbs swap in easily and the rest of the recipe is naturally gluten-free.
Final Thoughts
Three layers, no oven, and a result that looks like a patisserie made it — that is the magic of Nanaimo bars. Master the chill times and the scoring trick, and yours will slice as cleanly as any bakery's.
Keep this nanaimo bars recipe easy by making it the day before you need it; the overnight chill only improves the texture. For more sweet no-bake ideas, browse our winter breakfast ideas collection.
Sources
- https://anitalianinmykitchen.com/nanaimo-bars/
- https://www.cheflorarecipes.com/nanaimo-bars/
- https://www.aheadofthyme.com/nanaimo-bars-recipe/
- https://teresasrecipes.com/recipe/nanaimo-bars
- https://recipessmile.com/nanaimo-bars/
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