Gather all the ingredients in a blender.
Add the frozen pineapple chunks to the blender.
Pour in the coconut milk.
Sprinkle in the sugar and vanilla extract.
Add the lemon juice for extra flavor.
Blend on high until smooth and creamy.
Stop to scrape down the sides if necessary.
Taste and adjust sweetness if desired.
Once blended, transfer to a bowl or piping bag.
Serve immediately or freeze for a firmer texture.