Frozen Amaretto Sour
By Marty Cole Β· May 24, 2026
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My dad's old-school amaretto sour is what got me messing around with this Frozen Amaretto Sour in the Ninja Slushi. Amaretto, a little bourbon, lemon, and simple syrup come out slushy and smooth, that almond-and-citrus flavor with a sour bite that keeps it from being dessert. He took a sip, raised an eyebrow, and said it was better than the bar, which from him is a medal. Adults only here. The bourbon is what stops it from getting cloying, so don't leave it out, because amaretto alone goes sweet fast.
Your machine size
Slushi 64 oz (Standard) Β· quantities scaled Γ1
Ingredients
- Amaretto Liqueur10 oz
- Bourbon3 oz
- Fresh Lemon Juice5 oz
- Simple Syrup4 oz
- Cold Water18 oz
- Maraschino Cherryoptional1 garnish
Makes ~50 oz Β· est. 8.0% ABV
Directions
- 1Stir the amaretto, bourbon, lemon juice, simple syrup, and water in a pitcher.
- 2Taste for a sweet-tart balance and adjust syrup if needed.
- 3Pour the mixture into the Slushi vessel below the fill line.
- 4Seal the lid and start the SPIKED SLUSH preset.
- 5Let it freeze into a slush, about 36 minutes.
- 6Dispense and garnish with a maraschino cherry.
Tips
- Pour your liquid base into the Slushi bowl at room temperature, not chilled, since the machine does the freezing work for you.
- If the drink isn't reaching slush consistency after 45 minutes, make sure your bowl was pre-chilled in the freezer before adding liquid, and check that the tap dispenser moves freely.
- Scoop from the tap with a sturdy spoon or use the cup dispenser to catch the slush, working quickly before it starts to separate back into liquid.
Variations
- Swap bourbon for rye whiskey for a spicier, drier edge to the amaretto and lemon balance.
- Add a half ounce of fresh lime juice alongside the lemon juice to brighten the sour profile and add complexity.
- Use orgeat syrup instead of simple syrup for a nuttier, deeper almond flavor that complements the amaretto.
FAQ
- Can I use bottled lemon juice instead of fresh?
- Fresh lemon juice gives better flavor, but bottled works if that is what you have on hand. The Slushi machine will still freeze it properly either way.
- Why isn't my drink getting slushy after 30 minutes?
- Check that your Slushi bowl was frozen solid before you poured in the liquid base. If the bowl wasn't cold enough, it takes longer to reach slush texture. Also make sure the machine is plugged in and the motor is running as it churns.
- Can I make this less strong or alcohol-free?
- Yes, reduce the bourbon and amaretto by half and add more simple syrup and lemon juice to keep the balance sweet and sour. For a non-alcoholic version, skip both spirits and increase the simple syrup and lemon juice to taste.
- How long does the finished slush stay good in the Slushi bowl?
- Enjoy it fresh right out of the tap while it is still slushy, ideally within 20 minutes of it finishing the churn cycle. If you leave it sitting in the bowl, it will start to separate back into liquid.
Nutrition
Per serving Β· makes about 2 servings Β· estimated
Ratings & Reviews
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Meet Marty Cole
I'm a home cook who got a little obsessed with the Ninja Slushi and Creami. I test every recipe in my own kitchen on a real machine, dial in the texture, and only post the ones my family actually finishes.
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