For the frosting, if you don't have heavy cream, you can use milk or water instead. If using milk or water, I would try 3 tablespoons instead of ¼ cup. If it's too thick, add another tablespoon.
Calories: 300kcal | Carbohydrates: 42g | Protein: 3g | Fat: 14g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.5g | Cholesterol: 60mg | Sodium: 204mg | Potassium: 34mg | Fiber: 0.5g | Sugar: 29g | Vitamin A: 443IU | Vitamin C: 0.01mg | Calcium: 12mg | Iron: 1mg