Danish Potato Salad
["3 c. diced, cooked potatoes", "1 large onion, sliced", "3 Tbsp. butter", "1 tsp. salt", "1/2 tsp. pepper", "3 Tbsp. white vinegar", "1/4 c. cream or half and half", "1 Tbsp. sugar"]
["Heat butter and cook onion over slow heat.", "Add salt, pepper, vinegar and sugar.", "Bring to a boil and add cream.", "Mix well and slowly add potatoes while blending.", "Simmer 5 to 10 minutes. Serve warm."]
["potatoes", "onion", "butter", "salt", "pepper", "white vinegar", "cream", "sugar"]