Besides baking or grilling my peppers,I want to stuff them with cheese and prosciutto and put them in the refrigerator. All the recipes online say stuff them and fill the jar with olive oil and refrigerate. Doesn't olive oil harden in the frig? Is there a way to give them a long shelf life? Would another kind of oil work better? I thought of canning them but how can I pour hot liquid in the jar without melting the chesse? Anyone know how to make these and store them for months?