Prepare ingredients. Peel and chop half of a pineapple into large chunks. Feel free to use the core or leave it out if you’d like.
Blend. Working in batches, process the pineapple chunks, blueberries, sugar, and 4 cups water on medium setting for 60 seconds.
Strain and mix. Strain the blueberry and pineapple water mixture through a fine-mesh strainer or cheesecloth into a pitcher to remove any pulp. Stir in remaining 2 cups of water.
Serve and enjoy. Serve over plenty of ice and enjoy chilled.
