Step 1

Carefully use a paring knife and spoon to hollow out the lime halves to remove all membranes and pith.

Step 2

Juice the membranes to get ⅓ cup fresh lime juice.

Step 3

In a small pot over medium heat, combine the watermelon juice and sugar; stir until the sugar dissolves.

Step 4

Remove from the heat and stir in the gelatin and dragon fruit powder, if using. Stir until gelatin dissolves. Add the lime juice and tequila. Set aside.

Step 5

Add lime halves to a paper-towel lined baking tray then fill each one to the top with jello mixture. Place in the refrigerator and allow them to set for at least 3 hours.

Step 6

Once set, cut each lime shell into wedges and sprinkle with sesame seeds.

Step 7

Enjoy!