Mix together the sweetener and water in a small saucepan over high heat and bring to a boil; boil for one minute.
Remove from heat and stir in the peanut butter until melted well blended. Add additional water or optional almond milk as needed to get the right consistency. A dash of optional salt enhances the flavor.
Pour the warm sauce over ice cream to serve.
Video
Notes
Original recipe used ¼ cup erythritol plus ⅛ teaspoon stevia extract powder as granular sweetener blends weren't readily available.Creamy peanut butter is recommended but you can use crunchy peanut butter if you want to add small pieces of peanuts into the topping.Store peanut butter sauce leftovers in the refrigerator and heat up in the microwave or on the stove. Water, almond milk, or cream can be stirred in a little at a time to thin out the sauce.