Harvard Beets

Directions

1. 1
   Mix salt, sugar and cornstarch and add vinegar.
2. 2
   Heat in the top of a double boiler over direct heat, stirring constantly. When mixture boils, place it over hot water and cook, stirring often for 5 minutes.
3. 3
   Add beets, stir and cover.
4. 4
   Let heat over hot water for at least 30 minutes.
5. 5
   Add butter and serve.