Cucumber Salad
["1 carton sour cream", "1/3 c. vinegar", "1/2 tsp. dry mustard", "2 Tbsp. sugar", "1 tsp. salt", "1/4 tsp. pepper", "1 onion, thinly sliced", "3 cucumbers, peeled and thinly sliced"]
["Combine all ingredients and chill."]
["sour cream", "vinegar", "dry mustard", "sugar", "salt", "pepper", "onion", "cucumbers"]