Tropical Chicken Nuggets

Ingredients

• 1 (8-ounce) can crushed pineapple, drained
• 1 medium jicama, peeled and chopped
• 1 medium sweet red pepper, chopped
• 1 medium mango, peeled and chopped
• 1 jalapeño pepper, seeded and quartered
• 2 tablespoons fresh cilantro, minced
• 2 tablespoons fresh lime juice
• 1 tablespoon fresh gingerroot, minced
• 1 teaspoon lime zest, grated
• 1/4 teaspoon salt
• 3/4 cup reduced-fat sour cream
• 2 pounds chicken breasts, boneless and skinless, cut into 1-inch cubes
• 2 cups buttermilk
• 1 1/2 cups all-purpose flour
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 4 large egg whites
• 1/4 cup water
• 3 cups panko breadcrumbs
• 1 cup unsweetened coconut, shredded
• 2 tablespoons sesame seeds
• 2 teaspoons paprika
• nonstick cooking spray