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Grandma Lily’s Nanaimo Bars: A Decadent Canadian Classic

The first time I tasted a Nanaimo bar, it was a revelation. I was at a holiday potluck, surrounded by the usual suspects: sugar cookies, fudge, and peppermint bark. But nestled amongst them was a dessert that was strikingly different – a neat, layered square boasting a rich chocolate top, a creamy, pale yellow center, and a dark, crumbly base. One bite, and I was hooked. The combination of textures and flavors was intoxicating: the snap of the chocolate, the smooth, melt-in-your-mouth custard cream, and the satisfyingly dense, slightly chewy crust. It was a symphony of sweetness, and I immediately needed to know where it came from. That’s when I was introduced to Grandma Lily’s legendary recipe, a treasured heirloom passed down through generations.

Recipe Overview

Prep Time: 20 minutes
Cook Time: 5 minutes
Total Time: 1 hour 25 minutes (includes chilling time)
Servings: 12
Yield: One 9×12 inch pan
Dietary Type: Not suitable for gluten-free or dairy-free diets

Ingredients

Bottom Layer Crust:

½ cup butter
½ cup sugar
3 tablespoons cocoa
1 egg
1 teaspoon vanilla
2 cups graham cracker crumbs
1 cup coconut flakes

Middle Layer White Icing:

¼ cup butter
2 cups powdered sugar
1 tablespoon custard powder (Byrd’s is recommended, but any good quality custard powder will work)
A little milk (added gradually until desired consistency is reached)

Top Layer Chocolate Icing:

2 squares baking chocolate
1 tablespoon butter

Equipment Needed

9×12 inch pan
Double boiler (or heatproof bowl and saucepan)
Mixing bowls
Spatula
Whisk

Instructions

Prepare the Bottom Layer Crust: In a medium saucepan, combine the butter, sugar, and cocoa. Stir continuously over low heat until the butter is melted and the mixture is smooth. Be careful not to burn the mixture.
Add Egg and Vanilla: Remove the saucepan from the heat and quickly whisk in the egg and vanilla. Ensure the egg is fully incorporated to avoid scrambling.
Cook in Double Boiler: Transfer the mixture to a double boiler (or a heatproof bowl set over a simmering pot of water, ensuring the bottom of the bowl doesn’t touch the water). Heat gently, stirring constantly, until the mixture is fully melted and glossy. This will take about 3-5 minutes.
Incorporate Dry Ingredients: Remove the mixture from the heat and stir in the graham cracker crumbs and coconut flakes. Mix thoroughly until all ingredients are evenly distributed.
Press into Pan: Press the mixture firmly into the bottom of a 9×12 inch pan. Use the back of a spoon or a flat-bottomed measuring cup to create an even and compact layer.
Cool the Crust: Allow the crust to cool completely. This is important for the next layer to set properly. You can place it in the refrigerator to speed up the cooling process.
Prepare the Middle Layer White Icing: In a mixing bowl, cream together the butter and powdered sugar until light and fluffy.
Add Custard Powder and Milk: Add the custard powder and a little milk, one tablespoon at a time, until the icing reaches a smooth and spreadable consistency. Be careful not to add too much milk, as this will make the icing too thin.
Spread Icing Over Crust: Spread the white icing evenly over the cooled crust layer. Ensure the crust is completely cool before adding the icing, otherwise, the icing may melt.
Prepare the Top Layer Chocolate Icing: In a double boiler (or heatproof bowl over simmering water), melt the baking chocolate and butter together, stirring constantly until smooth and glossy.
Pour Chocolate Over Icing: Pour the melted chocolate evenly over the white icing layer. Use a spatula to spread it smoothly and ensure it covers the entire surface.
Refrigerate to Set: Refrigerate the Nanaimo bars for at least one hour, or until all layers are firm. This is crucial for easy slicing and prevents the layers from separating.
Cut and Serve: Once the Nanaimo bars are firm, cut them into squares and serve. Use a sharp knife and wipe it clean between cuts for neat edges.

Expert Tips & Tricks

Preventing a Soggy Crust: Ensure the crust is fully cooled before adding the icing. This prevents the icing from melting and making the crust soggy.
Achieving a Smooth Chocolate Top: Use high-quality baking chocolate for a glossy, smooth finish. Stir the chocolate and butter constantly while melting to prevent burning.
Consistent Icing Consistency: Add the milk to the icing one tablespoon at a time to avoid making it too thin. If the icing becomes too thin, add a little more powdered sugar.
Easy Cutting: Run a sharp knife under hot water and wipe it dry before each cut for clean, even slices.
Custard Powder Substitute: If you can’t find Byrd’s custard powder, any good-quality custard powder will work. You can also use a small amount of cornstarch as a last resort, but it will slightly alter the flavor and texture. Start with half a tablespoon and adjust to taste.

Serving & Storage Suggestions

Serve Grandma Lily’s Nanaimo Bars chilled, cut into neat squares. They are perfect as a dessert with coffee or tea.

Storage: Store the Nanaimo bars in an airtight container in the refrigerator. They will keep for up to a week.

Freezing: Nanaimo bars can also be frozen. Wrap them individually in plastic wrap and then place them in a freezer-safe container. They can be frozen for up to two months. Thaw in the refrigerator before serving.

Nutritional Information

Note: Nutritional information is an estimate and may vary based on specific ingredients used.

Nutrient	Amount per Serving	% Daily Value
Calories	345 kcal	17%
Total Fat	19 g	29%
Saturated Fat	12 g	57%
Cholesterol	51 mg	16%
Sodium	196 mg	8%
Total Carbohydrate	44 g	14%
Dietary Fiber	2 g	6%
Sugars	35 g	140%
Protein	3 g	5%

Variations & Substitutions

Gluten-Free Nanaimo Bars: Substitute gluten-free graham crackers for the regular graham crackers. Ensure all other ingredients are also gluten-free.
Dairy-Free Nanaimo Bars: Replace the butter with a vegan butter substitute and the chocolate with dairy-free chocolate. Use non-dairy milk in the icing.
Nutty Nanaimo Bars: Add chopped nuts, such as walnuts or pecans, to the crust for added texture and flavor.
Peppermint Nanaimo Bars: Add a few drops of peppermint extract to the middle layer icing for a festive twist.
Espresso Nanaimo Bars: Add a teaspoon of instant espresso powder to the crust for a coffee-infused flavor.

FAQs (Frequently Asked Questions)

Q: Why is my crust crumbly and not holding together?
A: This usually happens when there isn’t enough moisture. Make sure to measure the butter and sugar accurately. Also, ensure that the mixture is heated long enough in the double boiler to fully melt and bind the ingredients.

Q: Can I use a different type of cracker for the crust?
A: While graham crackers provide the classic Nanaimo bar flavor, you can experiment with other crackers like digestive biscuits or shortbread cookies. Adjust the amount of sugar accordingly, as some crackers are sweeter than others.

Q: My middle layer is too runny. How can I fix it?
A: If the middle layer is too runny, add a little more powdered sugar, one tablespoon at a time, until it reaches a thicker consistency. Refrigerating the layer for a short period can also help it firm up.

Q: How do I prevent the chocolate topping from cracking when I cut the bars?
A: To prevent cracking, make sure the chocolate is not too thick. Adding a tablespoon of butter helps create a smoother, more pliable topping. Also, use a warm knife and wipe it clean between cuts.

Q: Can I make these ahead of time?
A: Absolutely! Nanaimo bars are perfect for making ahead of time. They can be stored in the refrigerator for up to a week or frozen for up to two months. They are best enjoyed cold.

Final Thoughts

Grandma Lily’s Nanaimo Bars are more than just a dessert; they’re a slice of nostalgia, a taste of home, and a celebration of simple pleasures. This recipe, passed down with love, is a testament to the power of food to bring people together. So, gather your ingredients, embrace the process, and share these decadent squares with your loved ones. I promise, they’ll be asking for the recipe! And don’t be afraid to experiment with variations to make them your own. Happy baking!

Grandma Lily’s Nanaimo Bars Recipe