This recipe my dad and my husbands dad both made when we grew up. I love it. You can use a food processor, but using a grinder is the best! We made it with a cast iron food grinder and it just don't get any better. Also, don't use slice bologna or cheese if you can help it. Getting a chunk from the deli if possible it best. Consistency is the key to this recipe. It really changes the taste. This is great t take to parties. cut bread into 4's to make it grabable.
Note: I will have to remake recipe to get measurement on mayo. I never measure. I just go on consistency. Add until nice and spreadable.