Meat is usually quite expensive, and meals are generally light on meat and generous on vegetable fat. Frying in palm or peanut oil is the most common meat preparation, and smoked fish is commonly prepared in Benin. Grinders are used to prepare corn flour, which is made into a dough and served with sauces. "Chicken on the spit" is a traditional recipe in which chicken is roasted over a fire on wooden sticks. Palm roots are sometimes soaked in a jar with salt water and sliced garlic to tenderize them, then used in dishes. Many people have outdoor mud stoves for cooking.