Mix sugar, cocoa, oil and vanilla extract first, then add eggs one at a time and mix together

Scrape down side of mixer and then add in dry ingredients

Lightly flour a work surface (cookie sheet or counter) and roll dough lightly with flour. Divide dough into 16 roughly equal pieces by cutting with a knife.

Roll dough into ball shape and then cover with powdered sugar by rolling dough ball around in a large bowl with 2 cups of powdered sugar.

Place cookie dough on baking sheets and leave 2 inches in between cookies

Bake at 350 F for 10-12 minutes until crack marks appear and cookie is set. Let cool completely.

For frosting, mix together all ingredients until creamy and then pipe in between cooled cookies