# Step-by-step Directions:
01 - Add ice cubes, cold water, freshly squeezed lemon juice, granulated sugar, and blue raspberry syrup into the blender.
02 - Process on high speed until mixture achieves a smooth, slushie consistency.
03 - Taste and refine sweetness or tartness by adding extra sugar or lemon juice as needed.
04 - Moisten the rims of serving glasses and dip them into blue sanding sugar for a festive finish.
05 - Transfer slushie into prepared glasses.
06 - Decorate beverages with lemon slices, raspberries, and mint leaves. Serve at once while chilled.