An all American classic. All natural. Creators of specialty foods. Gluten free. Stonewallkitchen.com. Classic Sloppy Joe: Remember the classic Sloppy Joe's that were a staple in school cafeterias and in every home in America for years? Sweet and spicy, they first became popular in Key West in the 1930s. Our sauce is all grown up with peppers, onions and just the perfect amount of spice. So, grab the buns, plenty of napkins and enjoy! Made in USA.