Dietetic Open Hamburgers

• 1/2 lb lean hamburger
• 1/2 cup minced onion
• 1/2 teaspoon Angostura bitters
• 1/2 teaspoon salt
• 1/8 teaspoon pepper

1. Spread the meat mixture to the very edges of 4 slices whole-wheat bread. (I prefer substituting white bread.)
2. Broil 3 inches from heat source for 3 minutes.
3. Remove from broiler and spread a little mustard on top of the meat and top with thin slices of tomato.
4. Broil 2 minutes more.

Makes 4 open sandwiches.

From Doyne Nickerson's 1958 cookbook, 365 Ways to Cook Hamburger.