You can make the ice cream in advance, but assemble the ice cream sandwiches to order rather than making them and freezing them because the brioche won’t be soft.
Calories: 638kcal | Carbohydrates: 52g | Protein: 15g | Fat: 43g | Saturated Fat: 22g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Trans Fat: 0.002g | Cholesterol: 288mg | Sodium: 407mg | Potassium: 166mg | Fiber: 1g | Sugar: 11g | Vitamin A: 1466IU | Vitamin C: 0.2mg | Calcium: 143mg | Iron: 2mg