Brown Butter Brookies with a Fudgy Brownie Top

This brookie recipe combines a chewy chocolate chip cookie base with an ultra-fudgy brownie top, all baked in one pan. The secret is browned butter, which adds a deep, nutty richness to both layers.

The result is a thick, bakery-style bar that satisfies both cookie and brownie cravings at once. With a golden, slightly crisp edge and a center that stays moist and tender, these brookies are perfect for sharing or for keeping all to yourself.

Brookies are the best of both worlds: a soft, chewy chocolate chip cookie on the bottom and a dense, fudgy brownie on top. This version takes it a step further by browning the butter first, which gives every bite a warm, toasty, almost caramel-like flavor.

The two batters are layered in the same pan, so they bake together into one cohesive bar with beautiful distinct layers. It's an easy dessert that looks impressive but comes together with simple pantry ingredients.

Ingredients

Why this recipe works

Browning the butter is the key to this recipe's deep flavor. As the butter melts and cooks, the milk solids toast and turn golden, creating a nutty, aromatic taste that plain melted butter simply doesn't have. This small step adds complexity to both the cookie and brownie layers, making the brookies taste more indulgent and well-rounded.

Layering the batters is what creates the signature brookie look and texture. The cookie dough is pressed into the pan first, providing a sturdy, chewy base.

The brownie batter is then poured on top, and as it bakes, it sets into a fudgy, crackly crown. The two layers stay distinct but meld together at the seam, so each slice has a clear cookie bottom and a brownie top.

Notes and substitutions

Use good-quality semi-sweet chocolate chips for the cookie layer, or swap in dark chocolate for a more intense cocoa flavor. The cocoa powder in the brownie layer should be unsweetened, not Dutch-processed, unless you adjust the leavening.

For the best texture, use large eggs at room temperature and measure the flour by spooning it into the cup and leveling it off.

An 8x8-inch metal or glass pan works best. If using a glass pan, note that it may take a few extra minutes to bake. You can also line the pan with foil instead of parchment, but parchment makes lifting the bars out easier. For a slightly thicker bar, use a 9x9-inch pan and reduce the bake time by about 5 minutes, checking for doneness earlier.

• semi-sweet chocolate chips: dark chocolate chips or chopped dark chocolate
• unsalted butter: salted butter, but reduce the added salt to 1/4 tsp
• all-purpose flour: gluten-free all-purpose flour blend, if a gluten-free version is needed

Equipment

• 8x8-inch baking pan
• Mixing bowls
• Whisk
• Rubber spatula
• Measuring cups and spoons
• Wire rack