Ingredients

The following ingredients have 8 Servings
  • 4 tablespoons Butter
  • 2 ounces Unsweetened Chocolate
  • 1/3 cup Semi Sweet Chocolate Chips
  • 3 whole Eggs
  • 1/2 cup Brown Sugar
  • 1/2 cup Granulated Sugar
  • 1 teaspoon Pure Vanilla Extract
  • 1/4 cup Whole Wheat Pastry Flour or All-Purpose
  • 3 tablespoons Cocoa Powder
  • 1 teaspoon Baking Powder
  • 1/4 teaspoon Salt
  • 1/4 cup Sour Cream
  • 1/2 cup Nuts, Chopped (Optional)(I used Walnuts)
  • 14 tablespoons Cold Butter
  • 1/2 cup Granulated Sugar
  • 3/4 cup Packed Brown Sugar
  • 2 teaspoons Pure Vanilla Extract
  • 1 teaspoon Salt
  • 1 whole Egg
  • 1 whole Egg Yolk
  • 1/2 teaspoon Baking Soda
  • 1 3/4 cup All-Purpose Flour Or Whole Wheat Pastry Flour
  • 1 1/4 cup Semi-Sweet or Dark Chocolate Chips, Good Quality

Instruction

  • Preheat oven to 350 degrees.
  • Grease a 9x13 pan with butter, line with parchment paper and butter parchment. Alternatively you can butter pan and dust with cocoa powder.
  • Place butter and chocolate in a small saucepan over low heat. Cook until melted.
  • In a mixer fitted with the whisk attachment add eggs and sugars. Whisk until pale yellow and fluffy about 5 minutes on medium speed.
  • Add melted chocolate and vanilla to the egg mixture. Mix until almost incorporated.
  • Add dry ingredients to the eggs and mix until fully incorporated on low. Scraoe down sides as needed.
  • Add sour cream and nuts, fold in using a rubber spatula until well combined.
  • Spread brownie layer evenly over the bottom of greased pan.
  • In a small saucepan add 10 tablespoons butter and melt over medium heat until butter is brown and nutty smelling. Swirl the pan as needed to encourage butter to brown evenly. Remove from heat.
  • Add browned butter to mixing bowl and add remaining 4 tablespoons cold butter cut into 1 tablespoon sized pieces. Mix until butter is melted.
  • Add both sugars, vanilla and sea salt. Mix until blended.
  • Whisk whole egg with egg yolk and add to butter/sugar mixture. Beat on medium high speed 30 seconds. Let mixture rest 3 minutes.
  • Repeat beating mixture for 30 seconds and resting for 3 minutes until mixture becomes thick and pale.
  • Add baking soda and mix for 30 seconds. Scrape down the sides of bowl.
  • Add flour and mix on low speed just until combined.
  • Stir in chocolate chips.
  • Drop Brown Butter Chocolate Chip Cookie Layer evenly by spoonfuls over the top of brownie layer.
  • Bake for 35-45 minutes. 35 minutes are for a gooier brookie. Brown Butter Brookies are done when chocolate chip cookie layer is light brown and brownies have risen around chocolate chip cookies.
  • Allow bars to cool for 1 hour before cutting.