Melting Mint Brownies

Ingredients

• 34 cup butter
• 1 12 cups sugar
• 12 teaspoon salt
• 34 cup Dutch-processed cocoa powder
• 3 large eggs
• 34 cup all-purpose flour
• 12 teaspoon baking powder
• 18 teaspoon peppermint oil
• 3 cups confectioners' sugar
• 6 tablespoons butter, melted
• 3 tablespoons milk
• 18 teaspoon peppermint oil (to taste)
• 23 cup chocolate chips (or chopped bittersweet chocolate)
• 14 cup heavy cream (or whipping cream)