You can add as much or as little FECO or RSO as you’d like depending on your tolerance and preferences. Remember, FECO/RSO can be very potent; even just 1mL may be a lot to start with, so be sure to taste-test carefully and slowly. If you want them super strong, you can add more, up to 5mL. The mL volume is so small it doesn’t make a difference in the recipe's texture.