Place the pineapple chunks, ice cubes, and coconut milk into the blender. Ensure all ingredients are evenly distributed for smooth blending.
Secure the lid on the blender tightly and start blending on low speed, gradually increasing to high until the mixture is smooth and frosty. You should see the ice break down into tiny shards and the mixture become thick and creamy.
Stop the blender and check the consistency. If the slushie is too thick, add a splash more coconut milk and blend briefly to combine.
Pour the frosty mixture into glasses, filling them almost to the top. Notice the vibrant yellow color and inviting aroma.
Serve immediately with a pineapple wedge or a sprig of mint if desired. The slushie should be cold, thick, and slightly melty around the edges, perfect for sipping.
