Is it a salsa or a guacamole? Questions like this give me a headache. Here's what's important: it's a vivid amalgamation of the two, with bright citrusy flavors and a swift chile kick. The proportions are completely flexible and may be modified to suit your taste. You can also swap blood oranges, Cara Cara oranges, or even navel oranges for the tangerines. But no tomatoes! Double, triple, or sextuple the recipe to feed a crowd.