cooking and simultaneously forming a tostada or taco product in a cooking oil bath by inserting a pliable tortilla between adjacent molds when opened in a clamshell action , then closing the molds and conveying them through an oil bath and then opening the molds and removing the product . while cooking , the product is captured in the space between adjacent molds and permitted to cook into the desired shape . an interchange of conveyor carried molds is disclosed whereby the cooking equipment may process different product sizes and shapes .