Desserts · Part 3 of 3: Tips & recipe card
Maple Walnut Toffee Dark Chocolate Butter Crunch Tips, FAQ & printable recipe

- Prep
- Cook
- Total
- Serves
- 16
Tips for success
For the cleanest cuts, use a large, sharp chef's knife and press down firmly in one motion, rather than sawing. If the chocolate cracks, let the slab warm slightly at room temperature for a few minutes before cutting.
Store the bars in an airtight container at room temperature for up to a week; they also freeze well for longer storage.
To make the toffee extra glossy, you can sprinkle a pinch of flaky sea salt over the melted chocolate before it sets. If you prefer a thicker chocolate layer, increase the chocolate to 10 ounces.
For a deeper maple flavor, use dark maple syrup. Always let the bars come to room temperature before serving for the best snap and flavor.
Variations
- Pecan Butter Crunch: Replace walnuts with an equal amount of pecans, toasted and chopped. The flavor is slightly sweeter and more buttery, pairing beautifully with the maple and dark chocolate.
- Sea Salt Topping: After spreading the chocolate, sprinkle with 1/2 teaspoon flaky sea salt. The salt cuts the sweetness and adds a pleasant crunch.
- Milk Chocolate Swirl: Use 6 oz dark chocolate and 2 oz milk chocolate, grated and melted together. The milk chocolate adds creaminess and a sweeter taste, though the bars will be less intense.
- Spiced Maple Toffee: Add 1/2 teaspoon ground cinnamon and 1/4 teaspoon ground ginger to the toffee before cooking. The spices complement the maple and add warmth.
Storage and make-ahead
- Fridge
- Store in an airtight container in the refrigerator for up to 2 weeks; bring to room temperature before serving for best texture.
- Freezer
- Freeze in an airtight container for up to 3 months. Thaw in the refrigerator or at room temperature; no reheating needed.
- Reheat
- No reheating required; serve at room temperature. If chocolate dulls, warm briefly in a 200°F oven for 2-3 minutes.
Store the bars in an airtight container at room temperature for up to 1 week. Layer them with parchment paper to prevent sticking. The toffee may soften in humid conditions, so keep them in a cool, dry place.
The butter crunch can be made up to 2 weeks ahead and stored in an airtight container at room temperature. For longer storage, freeze for up to 3 months. Thaw at room temperature for 30 minutes before serving.
Serving ideas
Serve the bars at room temperature so the chocolate is firm but not hard, and the toffee snaps cleanly.
Arrange on a platter for a dessert table or package in cellophane bags for gifting. The bars are rich, so cut them into thick but not overly large pieces.
Pair with coffee or a glass of milk to balance the sweetness. The dark chocolate and maple flavors also work well with a robust tea.
For a festive touch, dust with a little cocoa powder or drizzle with extra melted chocolate before serving.
Frequently asked questions
Why is a candy thermometer necessary for this recipe?
Can this recipe be made without a candy thermometer?
Why does the chocolate need to be grated?
How should the butter crunch be stored to maintain crispness?
Can the recipe be doubled?
Maple Walnut Toffee Dark Chocolate Butter Crunch

Ingredients
- 1 1/2 cups walnut halves
- 1 cup unsalted butter (2 sticks)
- 1 1/4 cups granulated sugar
- 1/4 cup pure maple syrup
- 2 tbsp water
- 1/2 tsp kosher salt
- 1/2 tsp baking soda
- 8 oz 70% dark chocolate, grated (about 1 1/2 cups shavings)
Instructions
- Spread the walnut halves in a single layer on a baking sheet and toast in a 350°F (175°C) oven for 8-10 minutes, stirring once, until fragrant and lightly browned. Let cool completely, then chop coarsely. Keep the oven on for the chocolate? No, the chocolate is grated at room temperature.
- Using a box grater, grate the dark chocolate into a bowl to create fine shavings. Set aside at room temperature. The shavings will melt quickly when spread over the hot toffee.
- Line a 9x13-inch baking sheet with parchment paper, leaving overhang on two sides for easy lifting. Have the chopped walnuts ready to sprinkle over the toffee.
- In a medium saucepan, combine the butter, sugar, maple syrup, water, and salt. Cook over medium heat, stirring occasionally, until the butter melts and the sugar dissolves. Attach a candy thermometer and continue cooking without stirring until the mixture reaches 300°F (149°C), the hard-crack stage.
- Remove the pan from the heat and quickly stir in the baking soda until fully incorporated; the mixture will foam. Immediately fold in the chopped walnuts, then pour the toffee onto the prepared baking sheet. Use a spatula to spread it into an even layer.
- Let the toffee cool for 2 minutes, then sprinkle the grated chocolate evenly over the hot surface. Wait 2 minutes for the chocolate to soften, then spread it into a smooth, even layer with an offset spatula.
- Let the slab cool at room temperature for 30 minutes, then refrigerate for at least 1 hour until the chocolate is fully set and the toffee is firm. The slab should be completely hard before cutting.
- Lift the slab out of the pan using the parchment overhang. Place on a cutting board and use a large chef's knife to cut into thick bars, about 2 inches wide. Serve at room temperature for the best snap.
Estimated nutrition per serving
- Calories
- 320
- Protein
- 3 g
- Carbohydrates
- 28 g
- Fat
- 23 g
This recipe is based on a short cooking video and is published under the pen name Clara Weller. It was checked before publication, but errors can slip through. Nutrition, when shown, is an estimate. Read more in our editorial policy and on our food safety page.






