Cinnamon is a nice addition if you’re into that. You can also substitute the peanut butter for almond butter (or any nut butter, I suppose).
The more peanut butter you add, the richer this dip will be. If you would like to lighten it up, add less peanut butter to the ratio.
Find it online: https://listotic.com/3-ingredient-healthy-peanut-butter-dip/