Harvard Beets - cooking recipe

Ingredients

2 1/2 cups canned beets
1/2 cup sugar
1/2 tablespoon cornstarch
4 tablespoons vinegar
1/4 cup water
2 tablespoons butter

Preparation

Mix all above ingredients, except beets.
Bring to a boil and boil for 5 minutes.
Add beets and bring to a boil.
Serve warm.