Easy No-Bake Reese's Chocolate Peanut Butter Bars (with Healthier Options)

unsalted butter (melted (or coconut oil, melted))

graham cracker crumbs (about 8 full sheets)

powdered sugar (or 1/2 cup raw honey)

semi-sweet chocolate chips or 6 ounces of semi-sweet baking chocolate

peanut butter + 1 1/2 tablespoons for the top