Simple but Yummy Chocolate Brownies!

Hey everyone! This is my recipe for 'Simple but Yummy Chocolate Brownies!' I've made these way too many times, but still love them and hope you do too! 

1/3 cups of butter 
1/4 cup of cocoa powder 
1 cup of sugar
2 eggs
1 teaspoon of vanilla
1/2 cup of flour
*Optional, chocolate chips, nuts of your choice, or vanilla ice cream to top it off!

Melt the butter in a pan on medium heat, then stir in cocoa powder, then the sugar. Remove from heat and let sit for a couple of minutes. Add in the eggs and the vanilla, stir, then add the flour. (If you chose you can add chocolate chips or nuts at this point)

Stick in a 8x8 pan and at 350 degrees stick in the oven for 19-30 minutes. (You can check on it every five or so minutes to see how done you want your brownies) Enjoy!