If you want to replace sugar with a sugar alternative like Splenda, use 12tbsp of Splenda for the sponge and 5tsp Splenda for the cream filling.
Calories: 700kcal | Carbohydrates: 57g | Protein: 10g | Fat: 50g | Saturated Fat: 29g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 12g | Trans Fat: 1g | Cholesterol: 241mg | Sodium: 157mg | Potassium: 282mg | Fiber: 3g | Sugar: 37g | Vitamin A: 1629IU | Vitamin C: 20mg | Calcium: 128mg | Iron: 2mg