01 - Gently rinse and pat dry the blueberries. Halve them if desired for a more tender bite and better flavor distribution.
02 - In a mixing bowl, combine the blueberries, diced cucumber, red onion, jalapeño, and fresh cilantro.
03 - Add the lime zest and juice, sea salt, and freshly ground black pepper. Stir gently to evenly coat all ingredients without crushing the blueberries.
04 - If using, gently fold in the diced avocado and/or red bell pepper, taking care to avoid mashing the avocado.
05 - Taste the salsa and adjust salt, pepper, or lime juice as needed to balance the flavors.
06 - Refrigerate for 10 minutes to allow the flavors to meld, then serve with tortilla chips, alongside grilled fish, or over chicken.