Name: Boo-tterscotch M&M Chocolate Chip Cookie Cake
Prep time: 10 min
Cook time: 23 min
Yield: 12
Ingredients: 2 and ¼ cup all-purpose flour; 2 teaspoons cornstarch; 1 teaspoon baking soda; ¾ teaspoon salt; ¾ cup unsalted butter (1 and ½ sticks, melted); 1 cup firmly packed brown sugar (light or dark); ¼ cup granulated sugar; 1 large egg + 1 large egg yolk; 2 teaspoons vanilla extract; 3/4 cup semi sweet chocolate chips; 3/4 cup Boo-tterscotch M&M's; 2 ounces unsweetened baking chocolate (coarsely chopped); 4 Tablespoons unsalted butter; 1 teaspoon vanilla extract; 3-4 Tablespoons milk or cream; 2 cups powdered sugar; pinch of salt