If using canned coconut milk, spoon into a small saucepan 1 3/4 cup of the creamiest part from the top of three cans of coconut milk. Heat just enough to melt and smooth out the lumps. Add sugar and stir to dissolve. Allow to cool before mixing in 2 1/2 Tbs. of tapioca or arrowroot flour. Stir until smooth. Set aside.