Combine the water, ice cubes, pineapple chunks, apple cider vinegar and lemon juice in a high powered blender. Blend on high for 30 seconds to 1 minute, until very smooth and ice is blended well. Add stevia to taste. Serve immediately.
Recipe by Espresso and Cream at https://www.espressoandcream.com/2018/06/boosting-my-immunity-acv-slushy.html