Brown Butter Toffee Cookies That Stay Chewy for Days

Browning the Butter

Start with a light-colored saucepan—this helps you see the color change. Cut the butter into chunks for even melting. Over medium heat, stir constantly with a rubber spatula. The butter will foam, then the foam will subside. When you see tiny brown specks forming at the bottom and the butter turns a deep amber, remove it from the heat immediately. Pour it into a heatproof bowl to stop the cooking. If you leave it in the hot pan, it can burn.

Mixing the Dough

Use brown sugar here, not just white. Brown sugar adds moisture and a slight molasses flavor that complements the brown butter. I use a ratio of 2 parts brown sugar to 1 part granulated. Beat the brown butter and sugars together until they look like wet sand—about 2 minutes. This aerates the mixture slightly, giving the cookies a tender crumb.

Add the eggs one at a time, beating well after each. The eggs should be room temperature so they emulsify smoothly. Cold eggs will seize the butter and leave you with a lumpy dough.

Chilling Is Crucial

This dough needs at least 30 minutes in the fridge. Why? Brown butter has a lower melting point than cold butter, so the dough spreads more easily. Chilling solidifies the fat again, so the cookies bake up thick and chewy instead of flat. I've chilled it overnight with excellent results—the flavors meld even more.

Baking to Perfection

Bake at 350°F, not higher. The edges should be golden brown while the centers still look slightly puffed and soft. If you wait until the centers are fully set, they'll be overbaked and dry. The cookies will continue to firm up as they cool on the baking sheet.

Right out of the oven, sprinkle a few flakes of sea salt on each cookie. This isn't optional—the salt cuts the sweetness and makes the toffee and brown butter flavors pop.