1 can tomatoes (16 oz in my case)
kumquat peels (cut them in half, squeeze out the insides)--this was from about 5 kumquats.
cilantro (to taste--a handful for me)
goji berries (to taste--1/4 cup?) (optional)
1/2 red or orange bell pepper would be good too (I didn't have any)
blend in a food processor. no need to chop, so this takes only about 5 minutes to prepare.