These raspberry crumb bars will not disappoint. Loaded with butter and packed with jam they are an outrageous treat. Grab some tea and a few bars and relish in raspberry bar heaven! You'll Need: Jellyroll Pan Powdered Sugar Sifter   Raspberry Crumb Bars Ingredients Spray a 12x17 pan with Pam. Preheat oven 350 Crust: 3c.