The reason you should refrigerated it uncovered is that when you cover something at room temperature, then refrigerate it, condensation will form on top.
Calories: 338kcal | Carbohydrates: 36g | Protein: 6g | Fat: 20g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.2g | Cholesterol: 148mg | Sodium: 150mg | Potassium: 210mg | Fiber: 0.4g | Sugar: 29g | Vitamin A: 706IU | Vitamin C: 4mg | Calcium: 147mg | Iron: 1mg