Preheat oven to 350F (175C)

In a large bowl, beat butter, sugar, eggs, and vanilla until fluffy.

Add flour, cocoa, baking soda, and salt. Stir in mixture until blended. Add in chocolate chips.

Put cookies on a UNGREASED cookie sheet. Should be about a tsp each.

Bake for 10 minutes. (Optional: Sprinkle sugar onto cookies). Cool before eating.