2 1/2 sticks unsalted butter, at room temperature
2 cups sugar
2 large eggs
1 Tbsp vanilla extract
3/4 cup cocoa powder
2 cups flour
1 tsp baking soda
1/2 tsp salkt
White Sanding sugar, for garnish
In a large bowl, cream the butter and sugar together. Add the eggs and vanilla and mix until combined. In a separate medium bowl, whisk together the cocoa powder, flour, baking soda, and salt. Slowly add the dry ingredients to the creamed mixture and continue mixing until incorporated.
Roll the dough into 2 logs that are about 2 inches high and 1 foot long. Wrap them in waxed paper and refrigerate for 2 hours.
Preheat oven to 350 degrees.
Once thoroughly chilled (and firmed), slice the cookies into 1/2 inch thick rounds and cover with sanding sugar. Place on parchment lined (or greased) cookie sheet and bake for 10 minutes.
Remove to a wire rack to cool.