For a milder flavor, remove the seeds from the jalapeño completely or use half a pepper.
This dish can be made up to 4 hours in advance. Keep refrigerated until serving.
If the sauce becomes too thick after chilling, whisk in a teaspoon of water or extra lime juice to reach desired consistency.
Ensure shrimp are thoroughly dried after peeling to help the marinade adhere better.
Serve with lemon wedges and fresh cilantro sprigs for garnish.