In a large bowl with a hand mixer add in the unsalted room temperature butter. Cream butter until fluffy and then add in the powdered sugar and pure vanilla extract. Add in the dry ingredients (flour, cocoa powder) on low speed and mix until just combined. Fold the mini chocolate chips into the batter until just combined.

Line a baking sheet with parchment paper.

Then with a 1-tablespoon cookie scoop, scoop dough and roll dough into butter balls and place onto the prepared cookie sheets.

Bake cookies in a preheated oven at 350F degrees for 8-9 minutes.

Allow the cookies to rest on the cookie sheet for 5 minutes.

In a separate bowl add powdered sugar and roll the warm snowball cookie into the sugar until fully coated. Roll each ball until fully coated.