Brown Sugar Toffee Cookies

These brown sugar toffee cookies are made with European-style butter, dark brown sugar, and chunks of homemade toffee. They bake up with soft, chewy centers, lightly crisp edges, and pockets of melted toffee throughout. Rich, buttery, and indulgent, these bakery-style cookies deserve a spot right beside your favorite chocolate chip cookies.

Key Ingredients & Test Notes

• Unsalted Butter, 82% butterfat: Both the homemade toffee and cookies use unsalted butter, the cookie dough is formulated with European-style butter for a richer flavor and tender texture.
• Brown Sugar: Dark brown sugar with a higher molasses content adds deep caramel flavor to both the toffee bits and cookies.
• All Purpose Flour: This recipe uses flour with about 11% protein for the right balance of structure and softness.
• Homemade Toffee Bits: Made with just butter, brown sugar, and salt, the homemade toffee adds extra rich, butterscotch notes to the cookie dough.
  • Test Note: Store bought toffee bits may be drier and result in a different overall texture.
• Cornstarch: A small amount of cornstarch helps create a softer, thicker cookie with a slightly crisp edge.
• Flaky Sea Salt: Sprinkled on top after baking, it enhances the caramel notes and balances the sweetness of the toffee.

How to Make Homemade Toffee Bits

Making homemade toffee for cookies is essentially candy-making, it’s simple but demands your full attention for about 10 minutes. Be careful pouring the cooked mixture as the sugar will be very HOT!

1. First, make sure to vigorously stir the melted butter and sugar together at the start to fully combine them.
2. Next, whisk steadily and continuously as the mixture cooks until it reaches the hard crack stage on a candy thermometer, about 295°F (146°C).

How to Make Toffee Cookies

• Cream butter and sugars. Beat together the soft butter with the brown sugar and granulated sugar until lighter in color and somewhat fluffy (2-3 minutes).
• Mix in eggs and vanilla. Add the egg and egg yolk, mixing until well combined. Followed by the vanilla.
• Add the dry ingredients. Whisk together the dry ingredients in a medium bowl. Then, mix into the wet mixture one half at a time until just combined.
• Toffee Bits. Fold the toffee bits into the cookie dough to evenly distribute.
• Chill the dough. Pre-scoop the dough into even sized portions. Place in an airtight container and chill for 3 hours or even better overnight. I’ve also frozen them for an hour before baking when I needed cookies immediately!
• Bake. Place dough balls on lined baking sheets and bake 14-15 minutes at 350F (180C) until puffed in the center and golden on the edges. Sprinkle warm cookies with flaky sea salt.

Toffee Cookie Testing

I tested this cookie recipe several times, making small tweaks until I landed on the perfect texture, soft and chewy with lightly crisp edges and just enough melted toffee bits. To start, I experimented with the type of flour, the amount of sugar, and whether to include cornstarch. Then, I baked each version after both a three-hour chill and an overnight chill to compare results. Finally, I tested two shaping methods: scooping the dough into round balls and packing it into tall cylinders to see how each affected spreading and the final cookie shape.

• #1: My first batch had slightly more butter and granulated sugar, plus a whole lot of toffee folded in. Results: Flat crispy cookies with too much toffee compared to bites of plain cookie.
• #2: The second batch, I decreased the butter amount along with the granulated sugar and amount of toffee chips. Brown sugar was increased to compensate for less granulated sugar. Results: Much less spread on the cookie, more tender plain cookie, and better balance of toffee.
• #3: Batch three introduced the addition of cornstarch. Just 2-teaspoons mixed into the flour. Results: Less spread on the cookie and a tender, melt in your mouth texture. (my favorite)
• #4: This test I kept everything the same, but swapped half of the softer wheat all purpose flour (11% protein) for bread flour with a bit more protein (12%). Results: Thicker cookie, less chew, tender center.

In conclusion, I prefer cookie test #3 for its slightly chewy yet tender texture, achieved with lower-protein flour. Packing the dough into a cylinder created a more wrinkled surface, but it baked the same as dough shaped with a cookie scoop. Chilling the dough overnight reduced spread, as the flour had more time to absorb moisture. Chunks of toffee along the edges caused a few irregular shapes, which I easily fixed with a quick “cookie scoot.”

Helpful Tips

• Make homemade toffee bits. This extra step creates more flavorful toffee than store bought with soft pockets of melted toffee in the baked cookies. The ratio of flour, sugar, and butter are all balanced for the added moisture released from the homemade toffee.
  • Measure out 1 cup of the chopped toffee bits for the cookie dough. You will have some leftover toffee. Place it in a plastic bag in the fridge for another recipe.
• Properly cream the butter and sugar. This may take 1-2 minutes for the mixture to form a paste and all the sugar granules to be incorporated evenly into the butter. With the higher amount of brown sugar, it won’t become light and fluffy like creaming just butter and granulated sugar.
• Chilling the cookie dough. It makes a big difference in both texture and spread. The toffee pieces add extra sugar, which can cause the cookies to spread more as they bake. A good chill gives the flour time to fully hydrate, helping the dough hold its shape in the oven. It also creates that perfect chewy texture we’re after.
• Cookie scoot if needed! If any cookies come out of the oven with slightly irregular edges, it’s an easy fix. Just place a round cookie cutter or glass slightly larger than the cookie over it, then gently move your hand in a circular motion to nudge it back into a perfect round shape.

Storage & Leftovers

Cookie Dough

• Chill: Refrigerate cookie dough for up to 3 days before baking.
• Freeze: Toffee cookie dough can be scooped into balls and placed in airtight container for up to 3 months. Cookies baked from frozen dough will need an additional 1-2 minutes baking time.

Baked Cookies

• Room Temp: Baked cookies are best stored at room temperature in an airtight container for up to one week.

Toffee Bits

• Store leftover toffee bits in an airtight container in the freezer for up to 3 months.

★★★★★ Please leave a star rating and review below if you make this recipe! THANK YOU!!