Green Zebras are heirloom tomatoes with a striped pattern; they are sweet like red ... the cilantro and 1/4 cup of olive oil and pulse to a chunky puree. Add the puree to the bowl and stir well.

Pluck off any tougher outer leaves, then trim off the top ½ inch ... They should be wedged together. Pour in 1¾ cups olive oil, adding any additional if needed to completely cover artichokes.