Step 1

Preheat oven to 350 degrees Fahrenheit. Line two baking sheets with parchment paper and set aside.

Step 2

In the bowl of a stand mixer, beat butter until light and creamy. Mix in the sugar and brown sugar until well combined.

Step 3

Add in the eggs, one at a time, and mix until fully combined. Mix in the vanilla.

Step 4

In a medium bowl, whisk together the flour, cocoa powder, baking soda, and salt.

Step 5

Slowly add the dry mixture to the wet mixture, and mix until just combined. Fold in the chocolate chips and mallow bits.

Step 6

Drop spoonfuls of dough 2 inches apart onto the prepared baking sheets.

Step 7

Bake for 8-10 minutes, then allow to cool in the pan for 5 minutes before transferring to a wire rack to cool.