How to Make It
Preheat broiler with oven rack 6 inches from heat source. Toss together shrimp, cumin, coriander, ancho powder, garlic powder, 1 tablespoon of the olive oil, 1 teaspoon of the salt, and 1/4 teaspoon of the pepper in a medium bowl. Let stand 10 minutes.
Meanwhile, combine cabbage, red onion, cilantro, sugar, lime zest, 2 tablespoons of the lime juice, 1/2 teaspoon of the salt, and remaining 1 tablespoon oil and 1/4 teaspoon pepper in medium bowl, and toss to coat.
Process avocado, mayonnaise, sour cream, and remaining 1 tablespoon lime juice and 1/2 teaspoon salt in bowl of a food processor until smooth.
Spread shrimp in a single layer on a baking sheet. Broil in preheated oven until shrimp is cooked through, 3 to 5 minutes. Serve shrimp with slaw, avocado crema, and tortillas. Top with jalapeño, radish, and hot sauce, if desired.