I found this recipe on 100 days of real food. The original post is here.
1 1/2 cups frozen pineapple chunks
1 1/3 cups coconut milk
Blend until smooth and enjoy.
I did not think ahead to have my pineapple frozen so I just threw in a big can of cut up pineapple and one small can of coconut milk and a bunch of ice to make it more of a frozen drink. It probably could have used a little more pineapple (or, really, it just needed some really yummy fresh pineapple) and the ice watered the flavor down, so I would definitely recommend freezing the pineapple first. However, even with all the substitutions, it was still so very yummy on a very hot afternoon.