As the weather turns crisp and we’re spending more time at home, baking becomes one of our favourite pastimes. Not only can the act be soothing itself, but it’s rewarding to create delicious treats to share with loved ones (we firmly believe that baking is a love language). And what better to cozy up with than Canadian treasure Anna Olson’s new cookbook, Baking Day with Anna Olson?

Anna Olson on the cover of Baking Day with Anna Olson

Pre-order Baking Day with Anna Olson, Amazon, $31

To celebrate the October 27th release of Anna’s new cookbook, we’re sharing a sneak peek at one of her delectable new dessert recipes. Classic Nanaimo bars are remixed with the cozy addition of hot chocolate and marshmallows for a truly delightful treat.

Related: 9 Nanaimo Bar Recipes to Sink Your Teeth Into

Hot Chocolate Nanaimo Bars

Prep Time: 20 minutes
Cook Time: 10 minutes
Total Time: 30 minutes
Yields: 18 Nanaimo bars

A twist on a classic can be a beautiful thing, and adding hot chocolate mix to a Nanaimo bar recipe really works. Nestled between the traditional chocolate coconut base and the melted chocolate topping is a layer of hot chocolate–spiked custard icing. When the bars are topped with mini marshmallows, the hot chocolate twist is complete.

Related: Coffee and Hot Chocolate Recipes to Warm Your Belly This Fall

A plate of hot chocolate Nanaimo bars topped with miniature marshmallows

Ingredients:

Bars
½ cup (115 g) unsalted butter, cut in pieces
¼ cup (50 g) granulated sugar
¼ cup (30 g) cocoa powder
½ tsp salt
1 large egg, lightly beaten
1 ½ cups (195 g) graham cracker crumbs
1 cup (100 g) sweetened flaked coconut or toasted sliced almonds

Filling
½ cup (115 g) unsalted butter, room temperature
1 ½ cups (195 g) sifted icing sugar, divided
⅓ cup (40 g) powdered hot chocolate mix
2 Tbsp (12 g) vanilla custard powder
Pinch fine salt
3 Tbsp (45 ml) 1% or 2% milk

Topping
4 oz (120 g) semisweet couverture/baking chocolate, chopped
2 Tbsp (30 g) unsalted butter
1 ½ cups (75 g) mini marshmallows
Sea salt, for sprinkling (optional)

Directions:

1. Lightly grease a 9-inch (23 cm) square pan and line it with parchment paper so that it comes up the sides.

2. For the crust, place the butter, sugar, cocoa powder and salt in a metal bowl and set over a pot of gently simmering water, whisking until the butter has melted. Add the lightly beaten egg and whisk until the mixture thickens to the consistency of pudding, about 1 minute. Remove the bowl from the heat and stir in the graham cracker crumbs and coconut (or almonds). Scrape the crust mixture into the pan and spread to level it. Chill the pan while preparing the filling.

See More: Anna Olson’s Best Chocolate Recipes 

3. For the filling, beat the butter with 1 cup (130 g) icing sugar until smooth. Stir the hot chocolate mix, custard powder and salt with the milk (it will make a thick paste) and stir into the butter mixture until smooth. Beat in the remaining ½ cup (65 g) icing sugar. Do not overbeat — the filling should be smooth, but not fluffy. Spread evenly over the crust (no need to refrigerate).

4. For the topping, melt the chocolate and butter in a metal bowl placed over a pot of barely simmering water, stirring gently with a spatula until melted. Cool the chocolate slightly and then pour over the filling, spreading to cover it. Sprinkle the marshmallows on top of the chocolate in an even layer (it will not fully hide the chocolate) and, if you like, finish with a sprinkle of sea salt.

5. Chill the pan for about 2 hours before slicing into bars. Nanaimo bars will keep in an airtight container in the fridge for up to 1 week.

For more of Anna Olson’s delicious dessert recipes, check out her ultimate holiday desserts or Anna Olson’s best-ever cake recipes.