large bunch cilantro • large bunch parsley • scallions, very finely chopped • jalapeño, seeded and very finely chopped, OR crushed red pepper flakes, to taste • garlic clove, finely grated or minced • fine sea salt, more to taste • lemon juice or red wine vinegar, more to taste • extra-virgin olive oil, more for serving • Haas avocados, peeled, pitted and sliced • capers, drained • Flaky sea salt and black pepper