Add all the ingredients for the blue layer into a blender and blend until smooth. Pour into a container to store in the freezer while you make the other two layers.
Rinse the blender, then place all ingredients for the red layer in the blender and blend until smooth. Pour into a container and store in the freezer. Repeat with the white layer.
Once you’re ready to serve the cocktails, add the red layer into a glass. Add the white layer, and then top it off with the blue layer.
Garnish with a whole or half strawberry.
Notes
The layers need to be thick enough so they can sit on top of each other. Add more ice if needed.