Fresh Watermelon Salsa

Ingredients

• 1 1/2 teaspoons lime zest
• 1/4 cup fresh lime juice
• 1 tablespoon sugar
• ground pepper, to taste
• 3 cups watermelon, seeded and finely chopped
• 1 cucumber, peeled, seeded, and diced
• 1 mango, peeled and diced
• 1 jalapeño pepper, seeded and minced
• 1 small red onion, finely chopped
• 8 fresh basil leaves, finely chopped
• 1/2 teaspoon garlic salt
• tortilla chips or pita chips, to taste, for serving