Ingredients

The following ingredients have 4 Servings
  • 1 cup (125 grams) all-purpose flour
  • 1/4 cup plus 2 tablespoons (30 grams) unsweetened cocoa powder
  • 3/4 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup (100 grams) light or dark brown sugar (, packed)
  • 1/2 cup (100 grams) granulated sugar
  • 1/3 cup (80 ml) canola or vegetable oil
  • 1/2 cup (120 ml) buttermilk
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/2 cup (120 ml) boiling water
  • 1 teaspoon instant espresso powder or instant coffee granules ((optional, but recommended))
  • 1 cup (230 grams) unsalted butter (, softened to room temperature)
  • 3 cups (360 grams) powdered sugar
  • 2-3 tablespoons (30-45 ml) heavy whipping cream
  • 1 teaspoon vanilla extract
  • 3/4 cup finely crushed Oreo crumbs ((about 9 Oreos))
  • Optional: 16 mini Oreos

Instruction