Peanut Butter Sandwich Cookies

Name: Peanut Butter Sandwich Cookies
Ingredients: 1/2 cup unsalted butter, at room temperature; 3/4 cup smooth peanut butter; 1/2 cup granulated sugar; 1/2 cup firmly packed brown sugar; 1 egg; 1 1/2 cups flour; 1/2 teaspoon baking powder; 3/4 teaspoon baking soda; 1/4 teaspoon kosher salt; 2 cups crunchy peanut butter; 1/4 cup heavy whipping cream; 1/2 cup powdered sugar; 1/4 cup firmly packed brown sugar; 1 teaspoon vanilla extract; 10 ounces bittersweet chocolate, coarsely chopped; 1 cup honey roasted peanuts, coarsely chopped