1/4 cup fresh-squeezed lemon juice
1/2 cup fresh watermelon puree (pour through a strainer to remove seeds)
2 tablespoons simple syrup*
1 cup water
*Simmer equal parts water and sugar until sugar has dissolved. For added flavor use vanilla or lavender sugar.
Make the night before – mix all ingredients and pour into a plastic bottle, leaving a bit of room for expansion, and freeze until solid. This can be the ice pack in your basket, and it will be thawing but still cool by the time you’re ready to enjoy it.