Simple Cucumber Salad

1 large cucumber

1 small onion, chopped

1 (8 ounce) container sour cream

1 teaspoon white sugar

½ teaspoon distilled white vinegar

¼ teaspoon ground black pepper

Toss cucumber, onion, sour cream, sugar, vinegar, and black pepper together in a bowl.

Chill completely in refrigerator to serve.