Chocolate & Peanut Butter Mousse Tarts with Oreo Crust Ingredients Crust: 15 Oreo cookies 3 tablespoons unsalted butter, melted Chocolate layer: 6 ounces milk chocolate, chopped 1/2 cup heavy cream 1 tablespoon light corn syrup 1 teaspoon vanilla extract Peanut Butter Mousse: 1 cup peanut butter 1 3/4 cups heavy cream, divided 1/2 cup