- 1 cup mayonnaise
- 2 tablespoons milk
- 2 tablespoons vinegar
- 1 tablespoon white sugar
- salt and ground black pepper to taste
- 4 (8 ounce) cans dark red kidney beans, drained and rinsed
- 6 hard-boiled eggs, chopped
- 1 green bell pepper, chopped
- 1 small red onion, chopped
- Whisk mayonnaise, milk, vinegar, sugar, salt, and black pepper together in a medium-large bowl until well combined.
- Stir kidney beans, hard-boiled eggs, green bell pepper, and red onion into the mayonnaise mixture. Eat immediately or refrigerate before serving.