Apple-Cucumber Salsa

Ingredients

• 1 granny smith apple, peeled, cored, and cut into 1/4-inch dice
• 1/2 cucumber, peeled, seeded, and cut into 1/4-inch dice
• 1/2 small red onion, cut into 1/4-inch dice
• 1/2 small red bell pepper, cut into 1/4-inch dice
• 1 1/2 tablespoons white wine vinegar
• 1 1/2 teaspoons sugar
• salt