Makes 8 1/4 cup butter 3/4 cup peanut butter 3/4 cup graham cracker crumbs 1/4 cup sugar 1 cup semisweet or milk chocolate chips 1/4 cup milk Sea salt In a microwave safe bowl, melt the butter & peanut butter together for 45 seconds. Stir until smooth. Add graham cracker crumbs and sugar and mix to combine. Distribute mixture evenly between the prepared muffin cups. Refrigerate for 15 minutes to set peanut butter layer.