These brown sugar toffee cookies combine European-style butter, dark brown sugar, and homemade toffee chunks for bakery-style results. They bake up with soft, chewy centers, crisp edges, and pockets of melted toffee throughout. Rich, buttery, and indulgent, these cookies are an excellent companion to classic chocolate chip cookies.
Key Ingredients & Test Notes
- Unsalted Butter, 82% butterfat: Use unsalted butter for both the toffee and cookies. The dough calls for European-style butter for a richer flavor and tender texture.
- Brown Sugar: Dark brown sugar, with its higher molasses content, contributes deep caramel notes to the cookies and the homemade toffee.
- All-Purpose Flour: The recipe uses flour around 11% protein to balance structure and tenderness.
- Homemade Toffee Bits: Simple toffee made from butter, brown sugar, and salt adds intense butterscotch flavor.
- Test note: Store-bought toffee bits tend to be drier and can change the cookie’s texture.
- Cornstarch: A small amount helps produce a softer, slightly thicker cookie with a delicate crisp edge.
- Flaky Sea Salt: Sprinkled on warm cookies, it highlights caramel notes and balances sweetness.
How to Make Homemade Toffee Bits
Making toffee is straightforward but requires full attention for about 10 minutes. The sugar mixture will be extremely hot—take care when pouring.
- Start by vigorously stirring the butter and brown sugar as the butter melts so they combine evenly.
- Whisk constantly as the mixture cooks until it reaches the hard crack stage (about 295°F / 146°C) on a candy thermometer.
- When it reaches temperature, carefully pour the hot toffee onto a Silpat-lined baking sheet and allow it to cool completely.
- Chop or break the cooled toffee into small bits to fold into the cookie dough.
How to Make Toffee Cookies
- Cream butter and sugars: Beat softened butter with dark brown sugar and a bit of granulated sugar until the mixture forms a smooth paste, about 1–2 minutes.
- Add eggs and vanilla: Mix in the egg and egg yolk until combined, then stir in vanilla.
- Combine dry ingredients: Whisk the flour, cornstarch, baking soda, baking powder, and salt in a separate bowl, then add to the wet ingredients in two additions until just combined.
- Fold in toffee: Gently fold in the chopped toffee bits by hand or pulse briefly on low to avoid overworking the dough.
- Chill the dough: Pre-scoop into even portions and chill in an airtight container for at least 3 hours, preferably overnight. If you need cookies sooner, freeze scoops for an hour before baking.
- Bake: Arrange dough balls on lined baking sheets and bake at 350°F (180°C) for 14–15 minutes. The centers should look puffy while the edges turn golden. Sprinkle warm cookies with flaky sea salt.
Toffee Cookie Testing
This recipe was refined through multiple tests to reach the ideal texture: soft and chewy with lightly crisp edges and small pools of melted toffee. Tests focused on flour type, sugar ratios, cornstarch inclusion, chilling time, and shaping method. Key findings:
- Batch 1: More butter, more granulated sugar, and extra toffee produced flat, crisp cookies with too little plain-cookie bite.
- Batch 2: Reducing butter and granulated sugar while increasing brown sugar created less spread and a more tender cookie with a better toffee balance.
- Batch 3: Adding 2 teaspoons cornstarch reduced spread and produced a tender, slightly chewy texture—this was the preferred result.
- Batch 4: Swapping part of the flour for higher-protein bread flour yielded thicker cookies with less chew.
In short, the addition of a small amount of cornstarch and an 11% protein all-purpose flour produced the best texture. Chilling the dough overnight reduces spread and improves chew. If toffee causes uneven edges, reshape warm cookies with a quick scoot using a round cutter.
Jenn’s Cookie Tips
- Make homemade toffee bits: They melt into soft pools inside the cookie and contribute extra flavor. Measure about 1 cup (100 g) of chopped toffee for the dough and save any leftovers in the fridge or freezer.
- Cream thoroughly: With high brown sugar content the butter and sugar will form a paste rather than a light, fluffy mixture; mix until fully incorporated, about 1–2 minutes.
- Chill the dough: Chilling helps the flour hydrate and reduces spread, yielding the desired chewy texture. The toffee adds sugar that can increase spreading if the dough isn’t chilled.
- Cookie scoot: If edges are uneven after baking, use a round cutter or glass to gently re-shape the warm cookie in a circular motion.
Storage & Leftovers
- Cookie dough:
- Chill: Refrigerate scooped dough for up to 3 days before baking.
- Freeze: Scoop dough balls into an airtight container and freeze up to 3 months. Add 1–2 minutes to baking time when baking from frozen.
- Baked cookies:
- Room temp: Store baked cookies in an airtight container at room temperature for up to one week.
- Toffee bits:
- Keep leftover toffee in an airtight container in the freezer for up to 3 months.
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Brown Sugar Toffee Cookies
By Jenn Davis
Prep: 30 minutes
Cook: 14 minutes
Chilling Time: 3 hours
Total: 3 hours 44 minutes
Yield: 15 large cookies
Equipment
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small heavy-bottom saucepan
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electric stand mixer or hand mixer
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#20 large cookie scoop (about 3 Tbsp)
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large baking tray
Ingredients
Homemade Toffee Bits
- 113 grams unsalted butter, American or European style
- 220 grams dark brown sugar
- 1 teaspoon fine sea salt
Toffee Cookies
- 227 grams unsalted European-style butter, 82% butterfat, softened
- 265 grams dark brown sugar
- 50 grams granulated sugar
- 50 grams egg (1 large)
- 20 grams egg yolk (1 large)
- 1 tablespoon vanilla bean paste or pure vanilla extract
- 333 grams all-purpose flour, about 11% protein
- 2 teaspoons cornstarch
- ¾ teaspoon fine sea salt
- ½ teaspoon baking soda
- ½ teaspoon baking powder
- 100 grams homemade toffee bits (about 1 cup)
Topping
- flaky sea salt
Instructions
Homemade Toffee Bits
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Line a baking sheet with a silicone baking mat or parchment paper and set aside. DO NOT use wax paper, which can melt under high heat.
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In a small heavy-bottom saucepan over medium heat, combine butter, brown sugar, and salt. Stir as the butter melts.
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Once melted, whisk vigorously to combine and continue whisking constantly while cooking to prevent separation and burning. The color will shift from dark brown to a lighter caramel.
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If the mixture separates, remove from heat and whisk vigorously until it recombines, then return to heat and continue cooking.
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Cook 7–9 minutes until it resembles peanut butter and reaches about 295°F (146°C) for the hard crack stage.
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Remove from heat and carefully pour onto the prepared pan. Spread into an even layer with a silicone spatula; it will firm quickly.
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Let cool about 20 minutes or until it reaches room temperature and is firm enough to lift as a sheet.
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Chop the cooled toffee into small chunks, like chocolate chips, and set aside.
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Measure 100 grams (about 1 cup) of chopped toffee for the cookie dough. Store any extra in the fridge or freezer.
Toffee Cookie
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Whisk together flour, cornstarch, baking soda, baking powder, and salt in a medium bowl and set aside.
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In a stand mixer or large bowl, combine butter, dark brown sugar, and granulated sugar. Cream on medium-high for 1–2 minutes until a smooth sugar paste forms.
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Beat in the egg and egg yolk on medium speed until incorporated, then add vanilla.
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Add the flour mixture in two additions, mixing until just combined.
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Fold in the toffee bits by hand or pulse briefly on low to distribute them evenly without overworking the dough.
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Pre-scoop dough using a large cookie scoop. Place portions on a parchment-lined tray or in an airtight container and refrigerate a minimum of 3 hours or overnight.
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Preheat oven to 350°F (180°C) and line a baking sheet with parchment paper.
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Place cookie dough balls about 3 inches apart and bake on the middle rack, four large cookies at a time if needed.
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Bake 14–15 minutes until centers appear puffy and edges are golden brown.
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Transfer the pan to a wire rack, sprinkle with flaky sea salt, and if needed reshape any misshapen cookies by gently scooting them with a round cutter.
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Let cookies sit on the hot pan about 10 minutes to finish setting, then move to a wire rack to cool completely.
Notes
- Ingredients used:
- Flour: Gold Medal All Purpose (about 10.5–11% protein) was used when testing.
- Butter: European-style unsalted butter (82% butterfat) was used in testing.
- Toffee: This recipe was tested with homemade toffee, which creates soft, melted pockets in the cookies.
- Substitutions:
- Use a soft wheat all-purpose flour around 11% protein for a tender cookie with moderate spread. Stronger flours produce thicker cookies with less spread.
- Swapping European-style butter for American-style butter (80% butterfat) may yield a slightly less tender cookie; the recipe accounts for richer butter.
- Oven: The recipe was developed for conventional ovens (top and bottom heat). For convection ovens reduce temperature by 25°F and monitor for doneness earlier.
Weigh your flour: For this recipe 1 cup of flour was measured as 125 grams. The weights listed are how the recipe was tested and provide the best accuracy.
Different flour brands vary by protein level and wheat type, which affects texture and spread. Check the protein percentage on your flour and adjust expectations accordingly.