Now, this is an often referred to retro-food you hear spoken about quite
often. I read recently that it is making a comeback in fancy restaurants.

Tomato Aspic

2 tablespoons gelatin

½ cup cold water

No. 2 can tomatoes

1 teaspoon chopped onions
1 teaspoon salt

4 teaspoons sugar

2 tablespoons vinegar
Soften gelatin in cold water Heat other ingredients to boiling, add gelatin,
stir until dissolved, then rub mixture through sieve. Cool. Pour into a mold
which has been rinsed with cold water and place in refrigerator to set. Unmold.
Serve with mayonnaise or sour cream. 5 or 6 servings.  The Modern Family Cookbook