Harvard Beets
["2 (16 oz.) cans or jars sliced beets", "1/3 c. vinegar", "1/4 c. sugar", "1 Tbsp. cornstarch", "1/2 tsp. salt", "1 Tbsp. oleo or butter"]
["About 20 minutes before serving, drain beets, reserving 1/2 cup of beet liquid."]
["beets", "vinegar", "sugar", "cornstarch", "salt", "oleo"]