You may use frozen blueberries but it's best to use fresh blueberries.
Serving: 12slices | Calories: 407kcal | Carbohydrates: 59g | Protein: 5g | Fat: 17g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 95mg | Sodium: 121mg | Potassium: 103mg | Fiber: 1g | Sugar: 35g | Vitamin A: 559IU | Vitamin C: 1mg | Calcium: 33mg | Iron: 2mg