01 - Preheat your oven to 350°F to prepare for baking the tortilla chips.
02 - Brush both sides of each flour tortilla evenly with melted butter using a pastry brush.
03 - In a small bowl, combine granulated sugar and ground cinnamon, mixing thoroughly until uniform.
04 - Sprinkle the cinnamon-sugar mixture evenly over both buttered sides of the tortillas.
05 - Cut each tortilla into 6 to 8 triangular wedges. Arrange wedges in a single layer on parchment-lined baking sheets without overlapping.
06 - Bake for 10 to 12 minutes, flipping halfway through cooking, until chips are crisp and golden brown. Remove from oven and cool completely.
07 - In a large mixing bowl, add diced watermelon, cucumber, red bell pepper, red onion, cilantro, and minced jalapeño.
08 - Pour fresh lime juice over the mixture. Add salt and honey if using. Toss gently until all ingredients are well coated.
09 - Serve the watermelon salsa chilled or at room temperature alongside cooled cinnamon tortilla chips for dipping.