Alton Brown'S Black & White Brownies - cooking recipe

Ingredients

2 cups plain yogurt
4 large eggs
8 ounces melted butter
1 cup sugar, sifted
1 cup brown sugar, sifted
1 1/4 cups cocoa, sifted
1 tablespoon vanilla extract
1/2 cup all-purpose flour, sifted
1/2 teaspoon kosher salt
1/2 cup chopped walnuts
FOR THE TOP LAYER
1/3 cup sugar
3 eggs
1/4 cup all-purpose flour
1 teaspoon vanilla extract

Preparation

PreHeat oven to 350\u00b0 F.
In a mixer fitted with a whisk attachment, beat the eggs at medium speed until fluffy and light yellow.
Add both sugars.
Add remaining ingredients and mix to combine.
Pour the batter into a greased and floured eight-inch square pan.
Reserve five small spoonfuls.
In a separate bowl, combine ingredients for the top layer.
Whisk until smooth.
Pour over top of chocolate layer.
Top with the reserved five spoonfuls of brownie mixture and swirl together with a spoon.
Bake for forty-five minutes or until a toothpick inserted into the center of the pan comes out clean.
Remove to a rack to cool.
When completely cool, cover and store at room temperature.