Not just for slaw, cabbage is a snappy base that can handle lots of refreshing acidity-in this case from torn grapefruit and hot-and-sour chiles-without withering.
Despite being pickled, these chiles have a fresh crunch and bright, garlicky flavor. If you cook them, they lose that; add them to finished dishes, particularly pizzas.
This light, spicy soup is delicious hot or chilled. The sautéed aromatics turn the broth a rich red-orange, more reminiscent of tomato than watermelon. See if your guests can guess the main ingredient....
Masa labeled "masa preparada para tamales" often contains baking powder and salt, so don't add either if it does. Soak the husks three hours ahead or overnight.