According to this blog, all you need is the following:
2/3 cup of uncooked rice
1 1/4 cups of blanched almonds
1 teaspoon of lime juice
Zest from one lime
1 cinnamon stick
1 teaspoon vanilla extract
1 cup of sugar or brown sugar, depending on how dark you want the drink
Click on the link above for the full recipe.
I am definitely noting this recipe as one of my summer activities. I also want to experiment with different types of ice creams and sorbets. All suggestions are welcome!