Add Juice of Limes. I found I added one lime at a time. If you want the drink more tart, go ahead and add 2 to start and a 3rd if it isn’t enough.
Add Jalapeno to the Watermelon Limeade, set in the fridge and let the pepper infuse into the juice (the longer the spicier), I leave mine for 45 minutes.
Use a slotted spoon to remove all the jalapeno peppers.
Stir and serve with a sugared lime. Add additional sugar to taste.