First think of what kind of image you want to project - grandma's old fashioned stuff? fancy french pastry? rich and delicious? inventive, traditional, ethnic, buttery, whole grain and chaff, softness, crispiness, smell, taste, texture? all these things will help figure out a name.
Also what is your market going to be? who do you want to sell to? kids coming out of school? families? snobby rich people who want to show off? The name should be appealing to that market.
give us some information and there'll be loads of names.