Begin by preheating your oven to 350 degrees. Grease your 8x8 pan and set aside.
Melt your butter (either on the stove top or on low in your microwave).
Whisk the cocoa powder in with the butter and set aside to cool.
Add remaining ingredients and mix with a hand mixer, scraping the sides occasionally.
Pour the batter into the greased pan and smooth with a spatula. Bake 30 to 35 minutes or until edges are dry and browned.
Notes
Nutritional information is an estimate only.You can add ½ of a cup of walnuts or pecans, if desired.Store any leftover brownies at room temperature either covered or in an airtight container. They will be good for up to four days after making.