Spicy Shrimp & Onion Tacos with Cholula Cream

Ingredients

• 1½ teaspoons sea salt, plus more for seasoning
• 1 teaspoon ground cumin
• 1 teaspoon dried oregano
• 1 teaspoon smoked sweet paprika
• 1 teaspoon sugar
• ¼ teaspoon ground cayenne pepper
• 2 tablespoons olive oil, divided
• 1 large red onion, cut into wedges
• 1½ pounds large Gulf shrimp, peeled and deveined
• 8 corn or flour tortillas, warmed or toasted
• Cilantro, for serving
• Lime zest, for serving
• ½ cup sour cream
• 1 tablespoon lime juice
• 2 teaspoons Cholula hot sauce
• 1 small clove garlic, minced