Question: how to make oysters shell?
Answer: Cook on the stovetop for 10-20 minutes or until the shells open slightly. Baking: Preheat oven to 500 degrees. Put oyster shells on a cookie sheet and cook for 15 to 30 minutes or until the shells crack open. Grilling: Just toss them straight onto you barbecue grill on medium high heat, until the shells open.