3 cloves garlic 1 medium onion 1/2 cup catsup 1/2 cup chili sauce 1/2 cup vegetable oil 1 tablespoon paprika 1 teaspoon pepper, or more 1 tablespoon water 1 tablespoon Worcestershire sauce Juice of 1 lemon 1 teaspoon dry mustard 1 teaspoon salt 1 cup mayonnaise