To make cactus pear puree: Peel 5 - 6 cactus pears and chop them into large chunks. Place in a blender and puree. Pass the cactus pear puree through a fine sieve and discard the seeds. Puree enough cactus pears so that you end up with 1 1/2 cups of seedless puree; you will likely need about 6 cactus pears.