Creating Brown Butter Brookies is easy if you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a 9×9-inch baking pan or line it with parchment paper.

2. Brown the Butter: In a medium saucepan, melt the butter over medium heat. Continue cooking until it turns golden brown and has a nutty aroma; this takes about 5-7 minutes. Be careful not to burn it.

3. Make Brown Butter Layer:
– In a bowl, mix the brown sugar and the browned butter until well combined.
– Add the egg and vanilla extract, mixing until smooth.
– Stir in the flour, baking soda, and salt until just combined.
– Fold in the semi-sweet chocolate chips.

4. Prepare Cookie Layer:
– In a separate bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
– Add the egg and vanilla extract, mixing until fully incorporated.
– In another bowl, whisk together the flour, baking soda, and salt.
– Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in the chocolate chips.

5. Layer the Mixtures:
– Spread the brownie batter evenly in the bottom of the prepared pan.
– Spoon the cookie dough over the brownie layer, spreading it evenly.

6. Bake: Place the pan in the preheated oven and bake for 25-30 minutes, or until the edges are set and a toothpick inserted into the center comes out with a few moist crumbs.

7. Cool: Once baked, remove the pan from the oven and let it cool in the pan for 10-15 minutes. Then transfer to a wire rack to cool completely before cutting.

8. Cut and Serve: Once cooled, cut into squares or bars.

These steps will guide you in creating the incredible Brown Butter Brookies that are sure to be the highlight of any dessert table.