Gather all ingredients: vodka, frozen fruit, syrup, water, and ice cubes.
Add the frozen fruit, vodka, and syrup into the blender.
Pulse the blender a few times to combine everything gently, then blend on high until the mixture is smooth and slushy, with a vibrant color.
If the mixture is too thick or icy, add a splash of water or sparkling water and pulse again until desired consistency is reached.
Check the flavor and sweetness; add more syrup if needed, then give a quick pulse to incorporate.
Pour the slushie mixture into glasses, garnishing with fresh fruit or citrus slices if desired.
Serve immediately with a straw or spoon for a cool, icy beverage perfect for hot days.