Ingredients: 4 tablespoons unsalted butter, diced 1/2 cup + 1 tablespoon granulated sugar 1/4 cup + 2 tablespoons unsweetened cocoa powder 1/4 teaspoon salt 1/2 teaspoon vanilla extract 1 large egg 1/4 cup all-purpose flour 1/4 cup M&M candies Instructions: Preheat the oven to 325, …