• Preheat oven to 350 degrees. Line an 8x8 pan with parchment paper and set aside.
• Whisk together sugar and butter.
• Add eggs, vanilla, cocoa powder, and milk and whisk until smooth.
• Stir in flour, salt, and mini chocolate chips, stirring until flour is well incorporated.
• Bake for 30 minutes, until brownies are set. Remove from oven.
• Once brownies are cooked, remove from oven and spread with marshmallows. Do your best to get them even, but it doesn't have to be perfect- you're going to spread it around a bit afterwards. Return to the oven for about 3 minutes- until marshmallows begin to puff. (You don't want the marshmallows to brown so keep a close eye on them.)
• Take brownies out of the oven. Cool for about 10-15 minutes. Make the frosting.

Frosting

• Combine butter, chocolate chips, and milk in a bowl. Microwave for 45 seconds. Add powdered sugar and whisk until smooth.
• Pour frosting over warm brownies. Swirl gently with a spatula. You just want to spread the marshmallows around a bit and incorporate a bit of the chocolate frosting into the melted marshmallows. Let cool to set.
• Chill in the fridge or freezer for 20-30 minutes prior to cutting for a cleaner cut. I also spray my knife with non-stick spray! ENJOY!