Melt unsweetened chocolate along with butter.
Add sugar, eggs, sour cream, milk and vanilla.
Combine flour and cocoa powder together along with baking powder, baking soda and salt.
Add flour mixture into chocolate mixture. Stir to combine.
Add chocolate chips.
Scoop into muffin tins.
Bake in a 400° oven for 12-15 minutes.
Rich and delicious and filled with three types of chocolate!