Bourbon and bracing mint. The Slushi gets you to the same crushed-ice texture without the mallet.
Bench-tested by the Will It Slush? team · Last revised July 24, 2026
Ingredients
Scale the batch — amounts update live in your units.
- Bourbon295 ml
- Mint Simple Syrup (2:1)120 ml
- Water530 ml
- Fresh Lemon Juice30 ml
- Sugar (to taste)27.6 g
Method
- 1.Make mint syrup ahead.
- 2.Combine in Slushi, run 60 min.
- 3.Serve in pewter cup with fat mint bouquet.
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Notes from our testing
Bourbon at 4 oz is the ceiling — a traditional julep is nearly 30% ABV and will never freeze.
A real julep is 2.5 oz of bourbon, a little syrup and crushed ice, which works out well over 25% ABV before the ice melts. It is arguably the drink furthest from the slush window in the classic canon. Pouring one into a Slushi is a guaranteed hour of nothing happening.
The frozen version has to be a different drink that tastes like the original. Four ounces of bourbon across a full batch, mint syrup for sugar, and water for the rest gets you to about 11% ABV and 12 Brix. It drinks lighter than a julep and that is the trade — the alternative is a chilled bourbon puddle.
Mint goes in as syrup, not leaves, for the same reason as the mojito: the auger shreds them and extracts bitterness. Steep, strain, chill.
Serve it in something metal if you have it. A frozen julep in a chilled cup holds temperature noticeably longer than in glass, and this drink loses its structure faster than fruit-based slushes because there is nothing but sugar holding it together.