Prepare the Shrimp:Chop the raw shrimp into small, bite-sized pieces and place them in a glass or non-reactive bowl.
Add Citrus Juice:Pour the lime and lemon juice over the shrimp until fully submerged. Cover the bowl and refrigerate for 30–45 minutes, or until the shrimp turns opaque and looks “cooked.”
Add the Veggies:Once the shrimp is ready, drain some of the excess citrus juice if preferred. Stir in the chopped cucumber, tomatoes, onion, jalapeños, and cilantro.
Season:Add salt, black pepper, and garlic powder to taste. Gently mix everything until well combined.
Chill and Serve:Let the ceviche chill for an additional 10–15 minutes to allow the flavors to meld. Serve cold with tostadas, tortilla chips, or saltine crackers.