Achiote Seared Shrimp with Quick Habanero Pickled Onions - Rick Bayless

Ingredients

• 1/2 small package (3 1/2 ounces) prepared achiote paste, such as Yucateco, La Anita or Marin brand)
• 2 garlic cloves, peeled and roughly chopped
• 1/4 cup fresh orange juice
• 1/4 cup fresh lime juice
• 1 tablespoon vinegar
• Salt
• 1 1/4 pounds (about 24 pieces) large shrimp, peeled, leaving tail and final segment intact
• 1 large red onion, thinly sliced
• 1 small habanero chile, stemmed, seeded and thinly sliced
• 3 tablespoons olive or vegetable oil
• Roughly chopped cilantro or parsley, for garnish