Place the coconut milk and frozen chunks of pineapple into a food processor or high-powered blender. (The pineapple has to be frozen.)
Turn on the food processor and blend until the consistency becomes creamy.
You will have to stop several times and scoop down the pineapple.
Keep blending until all of the pineapple chunks are gone and the mix is smooth.
Enjoy immediately as it is ‘soft serve’ and should be eaten straight away.
If you want to freeze a little you can, just know it does freeze solid once frozen and is no longer soft.
Normally 16oz = 2 cups, not 4. However, the weight of pineapple is very different from what we normally weigh in a cup — like flour — so both measurements are right. The pineapple is chunky and big and doesn't fill a cup the same way flour would.