Step 1

Melt 1 cup of butter and 4 ounces of chocolate in the microwave for 1 minute, stir. Heat at 30-second increments and stirring until melted.

Step 2

Whisk sugar, flour, cocoa, eggs, vanilla, and salt together. Pour chocolate mixture into dry ingredients and combine. Fold in chocolate chips. Don't over mix. Pour batter into prepared muffin or mini muffin pans.

Step 3

Bake at 350 degrees for 10 minutes (for minis) 15 to 18 minutes for regular size muffins. Remove from the oven and immediately press a chocolate into the center.