Step 1

Preheat oven to 300 degrees. Spray a 8 by 4-inch bread pan*** with non-stick cooking spray (or grease with some butter).

Step 2

Place butter in a microwave safe bowl, cover and heat in microwave until melted, about 30+ seconds. Let cool slightly while measuring out remaining ingredients.

Step 3

Mix in sugar, then mix in egg and vanilla extract.

Step 4

Add flour and cocoa powder and mix just until combined, if adding chocolate chips then add them once dry ingredients are almost blended in.

Step 5

Pour into prepared baking dish and spread into an even layer. Bake in preheated oven until set, about 19 - 23 minutes.

Step 6

Let cool about 15 - 20 minutes before cutting and serving.