1Rinse the scallops under cold water and pat them dry with paper towels.
Cut the scallops into small, bite-sized pieces.
In a large bowl, combine the scallops, lime juice, and lemon juice. Stir well to ensure the scallops are fully coated in the citrus juices.
Cover the bowl with plastic wrap and refrigerate for at least 30 minutes, or until the scallops turn opaque.
Add the finely chopped red onion, minced jalapeño, and chopped cilantro to the bowl with the scallops.
Season with salt and pepper to taste, and stir to combine all the ingredients.
Serve the scallop ceviche chilled, garnished with additional cilantro if desired.