You can use sweetened condensed milk. If you do skip the erythritol.
Calories: 59kcal | Carbohydrates: 8g | Protein: 1g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 84mg | Sodium: 37mg | Potassium: 9mg | Fiber: 0.004g | Sugar: 0.04g | Vitamin A: 229IU | Vitamin C: 0.04mg | Calcium: 10mg | Iron: 0.2mg