Frozen Chocolate Milkshake
Better than the diner. Promise.
Whole milk + chocolate syrup, slushed to thick milkshake texture.
Bench-tested by the Will It Slush? team · Last revised July 29, 2026
Ingredients
Scale the batch — amounts update live in your units.
- Whole Milk590 ml
- Chocolate Syrup (2:1)235 ml
- Vanilla Syrup (2:1)60 ml
- Water920 ml
Method
- 1.Combine in Slushi on Milkshake mode, 40 min.
- 2.Whipped cream + chocolate shavings.
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Notes from our testing
Milkshake mode, not slush mode — the sugar and fat load is designed for a softer setpoint.
The Slushi's milkshake setting runs a different temperature target than the slush setting, and dairy drinks need it. A chocolate milkshake mix is high in both fat and dissolved sugar, and on the colder slush setpoint it either goes grainy or over-firms against the chamber wall. On the milkshake setting it comes out smooth.
Because the mode is doing some of the work, the sugar target is more forgiving here than anywhere else in the library — anywhere from 11 to 14 Brix produces something drinkable. We land near 12 with whole milk, chocolate syrup and a little vanilla.
Real ice cream in the chamber is not necessary and mostly not helpful. The machine is producing the frozen texture itself, and adding ice cream mainly adds fat and air that make the batch soft. If you want it richer, a splash of heavy cream does more with less volume.
Malted milk powder is the upgrade worth making. Two tablespoons adds body and a toasted note without moving the sugar meaningfully, and it is what separates a homemade shake from a diner one.