Ingredients

Soft butter, for greasing the pan
Flour, for dusting the buttered pan
4 large eggs
1 cup sugar, sifted
1 cup brown sugar, sifted
8 ounces melted butter
11/4 cups cocoa, sifted
2 teaspoons vanilla extract
1/2 cup flour, sifted
1/2 teaspoon kosher salt

Directions

Preheat the oven to 300 degrees F. Butter and flour an 8-inch square pan.

In a mixer fitted with a whisk attachment, beat the eggs (oops!) at medium speed (whew) until fluffy (oops!) and light yellow (hmm). Add both sugars. Add remaining ingredients, and mix to combine.

Pour the batter into a greased and floured 8-inch square pan and bake for 45 minutes. Check for doneness with the tried-and-true toothpick method: a toothpick inserted into the center of the pan should come out clean. When it’s done, remove to a rack to cool. Resist the temptation to cut into it until it’s mostly cool.

SERVINGS: 16 (PER BROWNIE); Calories: 243; Total Fat: 13 grams; Saturated Fat: 8 grams; Protein: 3 grams; Total carbohydrates: 28 grams; Sugar: 22 grams Fiber: 1 grams; Cholesterol: 83 milligrams; Sodium: 82 milligrams

Source: http://www.foodnetwork.com/recipes/alton-brown/cocoa-brownies-recipe/index.html?ic1=obinsite