Spent a weekend testing condensed milk in the Slushi. Here's what actually worked
Been messing with sweetened condensed milk in my Ninja Slushi for the last couple weeks because half the copycat recipes online just say "add a splash" with no numbers.
Ended up testing ratios from 2 oz up to 8 oz per 1 L of base. Quick notes in case it saves anyone a wasted batch:
- 3–5 oz per liter is the sweet spot. Silky, dense, no icy bits.
- Past 6 oz it starts getting sticky and the paddle struggles.
- If the recipe already has sugar or simple syrup, cut it. Condensed milk is ~55% sugar, you'll blow past the machine's Brix window and it won't slush.
- Eagle Brand and Nestlé La Lechera behaved basically the same. Store brand from Aldi worked too, slightly less thick.
Recipes that came out best:
- Brazilian lemonade (limes + condensed milk + water)
- Wendy's Frosty copycat (chocolate milk + condensed milk)
- Southern sweet tea + cream
- Bushwacker (if you want the spiked one)
Wrote up the ratios and the four recipes here with the exact amounts if anyone wants them: https://slushiguide.com/condensed-milk-slushi
Happy to answer questions, and if you've tried other ratios I'd like to hear what worked for you