How to make guava paste - B+C Guides
Using a wooden spoon, cook the mixture down into a thick paste. This takes about 20 minutes or so. When the paste is thick, line a small square or loaf an with waxed paper and pour the paste into it. Spread the paste out into the pan and smooth it. Set the pan of guava paste aside in a cool place (not the fridge) for about 24 hours.