Nanaimo Bars

- Total Time
- 30 minutes, plus 1½ hours’ chilling
- Rating
- Comments
- Read comments
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Ingredients
- ½cup/115 grams unsalted butter (1 stick), cut into pieces
- ¼cup/50 grams granulated sugar
- 1large egg
- 3tablespoons cocoa powder
- 1teaspoon vanilla extract
- 2cups/235 grams graham cracker crumbs
- 1cup/85 grams unsweetened shredded coconut
- ½cup/50 grams finely chopped walnuts, almonds or pecans (or a mixture)
- ¼cup/60 grams unsalted butter (½ stick), at room temperature
- 3tablespoons heavy cream
- 2tablespoons custard powder, such as Bird’s
- 2cups/245 grams confectioners’ (icing) sugar
- 4ounces/115 grams semisweet chocolate, broken into ½-inch (1¼-centimeter) pieces
- 2tablespoons unsalted butter
- Flaky sea salt, for sprinkling (optional)
For the Base
For the Buttercream
For the Chocolate Topping
Preparation
- Step 1
Line an 8-by-8-inch (20-by-20-centimeter) metal baking pan with parchment, allowing parchment to overhang by about 2 inches (5 centimeters) on two sides.
- Step 2
Prepare the base: In a double boiler, or a heatproof bowl placed over a saucepan of boiling water, whisk butter with granulated sugar, egg, cocoa powder and vanilla until melted. Continue whisking until mixture thickens slightly, 1 to 2 minutes. Remove from heat.
- Step 3
Stir in crumbs, coconut and nuts until the mixture is well combined and resembles wet sand.
- Step 4
Transfer mixture to the parchment-lined pan and use your fingers to press it into an even layer. Transfer pan to the refrigerator to chill until firm, at least 15 minutes.
- Step 5
Meanwhile, prepare the buttercream: In a stand mixer fitted with a paddle attachment, cream butter on medium speed for about 1 minute. Add heavy cream and custard powder and mix until combined, scraping sides and bottom of the work bowl as needed. Add 1 cup confectioners’ sugar and mix on low until incorporated. Add remaining confectioners’ sugar and mix on low until combined, scraping the bottom of the bowl as needed, then mix on medium-high speed until smooth, light and fluffy, 2 to 3 minutes.
- Step 6
Remove pan from refrigerator. Dollop the buttercream on top of the base layer then gently spread it evenly on top using an offset spatula. Transfer pan to the refrigerator to chill until buttercream is set, about 30 minutes.
- Step 7
Prepare the topping: In a small, heavy saucepan or a double boiler, heat the chocolate and butter over low, stirring often, until melted and evenly combined, 2 to 3 minutes. Remove from heat. Take pan from refrigerator and pour chocolate on top of buttercream layer. Working quickly and carefully, spread the chocolate evenly over the buttercream using an offset spatula. Sprinkle with flaky sea salt, if using.
- Step 8
Return pan to refrigerator and chill until chocolate hardens, about 25 minutes.
- Step 9
To serve the bars: Lift excess parchment to remove Nanaimo square from the pan. Cut into 16 2-inch (5-centimeter) squares. Store bars in the refrigerator until ready to serve. Bring to room temperature before serving. Store remaining bars in the refrigerator for a few days, or wrap well and freeze.
Private Notes
Comments
Semisweet chocolate is too sweet for the chocolate topping. Use bittersweet chocolate instead. Offsets the sweetness of middle layer. Per 70 yr old recipe I use.
If you leave out the custard center layer, you’ll still get something that tastes good, but it is NOT a Nanaimo bar. That center layer is a vital component; otherwise, it’s not a Nanaimo bar. Call it something else.
Use half the amount of sugar. 2 Tbsp sugar for base. 1 cup conf sugar for middle layer. Also use 2 Tbsp corn starch with 1/4 tsp vanilla instead of custard powder.
I was paranoid about the raw egg since I was planning on serving these to a large group at Christmas including a bunch of small children. I baked the crust at 350 until it reached 190 degrees and it turned out just fine!
As a Canadian I find the author's description of "almost exclusively packaged ingredients" offensive and poorly researched.
Hailing here from Canadaland, very close to Nanaimo. Unfortunately, as written this isn’t a holy grail authentic recipe. The flavours are pretty nice (but then again, you can’t go too wrong with butter and sugar). But the base was proportionally way too thick in comparison to the custard. And - the base was pretty crumbly. I may try halving the base next time. The bar needs slightly more custard (I may try 1.5x), and I wanted a bit more custard taste to be authentic (will add another tbls of custard powder). With those changes, the top needs to be unsweetened chocolate.
