Place the fruit in your blender, making sure to include any juice or syrup you want to incorporate.
Add the bourbon to the blender over the fruit, ensuring that the alcohol will infuse the mixture with warmth and depth.
Top with ice cubes, filling the blender to about three-quarters full to ensure a thick, slushy consistency.
Drizzle in honey or simple syrup if you prefer a sweeter slushie, then secure the lid on the blender.
Blend on high speed until all ingredients are smoothly combined, and the mixture is thick and slushy, about 30-40 seconds.
Check the texture; it should be thick enough to hold a spoon without immediately melting. If needed, blend for a few more seconds.
Spoon the whiskey slushie into chilled glasses and garnish with fresh fruit or a sprig of mint if desired.
Serve immediately with a straw or spoon, enjoying the cool, boozy treat that offers a harmonious blend of warmth and icy refreshment.