To STORE no bake peanut butter bars, place them in an airtight container and place them in the fridge for about a week. These 6 ingredient no bake Peanut Butter Bars are topped with chocolate and taste just like a Reese’s peanut butter cup. These no bake peanut butter bars are out of this world! You’ll love how easy they are to make. If you only have unsalted butter, add a pinch of salt to the peanut butter mixture. Storing Tips. Chocolate: I like regular semi-sweet chocolate chips, but you can use milk chocolate if you prefer that. Peanut Butter Bars AKA the best thing ever ️ If you love peanut butter and Reese’s peanut butter cups, you are going to love these homemade Peanut Butter Cups. Butter: I like salted butter in this recipe, but it's up to you. There is nothing better in the world than a dessert filled with both chocolate and peanut butter. You can eat them straight from the fridge or let them come to room temperature before you eat them. Peanut butter: I use store-bought peanut butter for this recipe, like Skippy or Jif. They only take 10 minutes to make and taste like a homemade reese’s bar!