1/2 c. sugar
1 1/2 tbsp. cornstarch
1/4 c. water
2 tbsp. butter
1/4 c. lemon juice (or vinegar)
2 c. cooked sliced beets (or 1 can)

Mix sugar and cornstarch, add lemon juice and water, boil 5 minutes. Add beets, let stand over low heat 30 minutes. Just before serving, bring to a boil and add butter.