This is my mom's sloppy joe recipe. I think it must have come from a
French's ad, but I'm not sure. She just had a list of ingredients. I
added more directions. Don't omit the butter. That's what really
makes it good.

The recipe says 4 servings, but it's more like 2, IMO.

Sloppy Joes
4 Servings

1 pound hamburger
1/2 cup catsup
1 tablespoon vinegar
1 tablespoon French's (yellow) mustard
1 tablespoon butter
1 teaspoon Worcestershire sauce
salt and pepper

4 hamburger buns

Break up hamburger and combine in a skillet with catsup, vinegar,
mustard,
butter, and Worcestershire. Cook over medium-low heat for about 20
minutes,
until hamburger is cooked through. Season with salt and pepper to
taste. If
mixture dries out too much during cooking, add more catsup. Divide
mixture
equally and serve each portion on a warmed hamburger bun.