Step 1

In a medium bowl, whisk together the lime zest and juice with the honey and olive oil. Season to taste. Add onion and chile to the bowl and let sit for at least 30 minutes.

Step 2

Place the watermelon in a serving bowl. Spoon the onions and chiles over the watermelon and use your hands to gently toss to coat. Top with the feta and basil, then pour over the rest of the dressing.

Step 3

Garnish with flaky salt and serve.