Directions
Spray a microwavable bowl with cooking spray. Then add the mini marshmallows, this prevents it from sticking to the bowl. This step is optional, however, it makes it easier to scrape out of the bowl.
Melt the marshmallows in 30-second intervals until the marshmallows are fully melted.
Slowly add the water and vanilla to the melted marshmallows. If you desire to color your fondant, now is a good time to add edible gel colors. It is much easier to do it this way. Otherwise, you can color it later on.
Mix the melted marshmallows, water, and vanilla until it is smooth. Make sure you work out all the lumps.
Then, add powdered sugar mixed with tylose powder one cup at a time, but reserve a cup. A word of caution, do not dump the entire batch of powdered sugar. It will take forever to knead. At this point, the fondant will be very sticky. Just keep adding powdered sugar and continue to knead.
Thoroughly rub your hands with butter or shortening, then add the remaining cup of powdered sugar to a board, and kneading until the fondant is smooth and pliable. This should not take long at all but it depends on the amount of fondant you are making. This is where you will need some elbow grease.
Finally, wrap the fondant with the plastic. Then place the fondant in a ziplock bag and store in the refrigerator.