INGREDIENTS
1 1/2
lbs. ground beef
1
medium onion, very finely minced (This is important: a fine chop won’t do. but don’t be tempted to use a food processor or you’ll end up with a watery mess.)
1 tbsp
prepared mustard
1/2 cup
water
1 tbsp
Worcestershire Sauce
1/4 tsp
Kosher salt