Chancho en Piedra refers to a traditional Chilean tomato-based seasoning ( a cross between sauce , spread). It is made by grinding the ingredients in a stone mortal and pestle. Chancho en Piedra is delicious over rice or on bread. Chancho en Piedra is literally translated to "Pig on a Rock", but the the name actually originated from the term "chanchar en piedra" which means to grind in a stone mortar. Grinding all the ingredients in a stone mortar is the traditional way of making this Chilean traditional food. To make it, just grind all the ingredients below in a stone mortar, if not use any mortar and pestle set. Maybe it will work also with modern grinders. Ingredients: 4 ripe tomatoes 1 clove garlic 2 tablespoons olive oil salt and fresh ground black pepper to taste