Step 1

Preheat oven to 400℉. Sift together flour, baking soda, and salt.  Set aside.

Step 2

In a large mixing bowl, cream the butter, sugar, and cocoa.  Add eggs and vanilla.  Blend in sour cream and milk.  Mix until creamy scraping down the sides and bottom of the bowl periodically.  Add sifted flour mixture.  Mix well.

Step 3

Drop cookie dough onto a parchment lined cookie sheet with an ice cream scoop (approximately 2 tablespoons of dough). Bake in a preheated 400 degree oven for 10-12 minutes or until the dough springs back after lightly touching. Let cool completely before icing.

Step 4

In a medium-size mixing bowl, cream together butter and cream cheese.  Add vanilla and cocoa and beat until smooth.  Add powdered sugar 1 cup at a time and mix until smooth.  Add milk one tablespoon at a time until desired consistency   Spread over cooled chocolate drop cookies