Creamy Dilled Cucumber Salad

Ingredients

• 1/4 teaspoon freshly ground black pepper
• 2 tablespoons fresh dill, finely chopped
• 1/2 cup red onion, thinly sliced
• 2 cups English cucumber, thinly sliced
• 1/4 teaspoon kosher salt
• 1 tablespoon milk
• 1/2 teaspoon Dijon mustard
• 1/3 cup Greek yogurt
• 1 tablespoon white vinegar