– 2 1/2 lbs. Red potatoes, peeled and cut into 1" cubes – 3 hard-boiled eggs, diced – 1/2 c. yellow onion, finely chopped Dressing: – 1 cup mayonnaise, like Duke's – 1/3 cup yellow mustard – 1/3 cup white vinegar – 1 Tablespoon sugar, or granular sugar substitute – 1/2 tsp. salt – 1/2 tsp. pepper – 1/2 tsp. garlic powder