Frozen fruit slushie in a 350 ml portable blender
About 5 minutes · 1 bottle (350 ml)
A slushie is the hardest thing to ask of a small blender, because you are deliberately keeping the mixture too thick to circulate. It is entirely doable in a 350 ml bottle, but it needs a different technique from a smoothie: less liquid than feels right, and short cycles with a shake in between rather than one long grind.
Ingredients
- 200 g frozen fruit — mango, pineapple, peach or mixed berries
- 100 ml apple or orange juice, or water with a squeeze of lime
- Optional: a few extra ml of juice, held back to loosen the mix
Step by step
- Loosen the fruit. Let the frozen fruit stand out of the freezer for two or three minutes so it is loose pieces rather than one block.
- Juice first. Pour the juice into the empty bottle, then tip the frozen fruit in on top.
- First cycle. Seat the bottle on the base and double-click for a 30-second cycle.
- Shake hard. Lift the bottle off, turn it upside down and shake for a couple of seconds to drop the top layer back onto the blades.
- Second cycle. Set it back on and run one more cycle. Add 30 ml more juice and repeat only if the mixture is still not moving.
The ratio that works
Roughly two parts frozen fruit to one part liquid by volume. In a 350 ml bottle that is about 200 g of frozen fruit to 100 ml of juice or water. Less liquid than that and the mixture will not move at all; more and you have made a cold smoothie rather than a slushie.
Use juice rather than water if you want it to taste of something. Apple juice is the most neutral, orange the most assertive. If you use water, add a squeeze of lemon or lime so the drink has some acidity to carry the fruit.
Which frozen fruit behaves
Mango, pineapple and peach give the smoothest slushies because the flesh is dense and holds its texture as it breaks down. Mixed berries work but the seeds stay whole, which some people like and some do not. Frozen banana turns creamy rather than icy, so use it as part of a mix rather than on its own.
Fruit frozen in a solid block needs two or three minutes on the bench before it goes in. A single frozen lump will simply sit on the blades; loose pieces feed themselves down.
Short cycles and a shake
Liquid in first, frozen fruit on top, seat the bottle and double-click for a 30-second cycle. When it stops, lift the bottle off — the motor cuts out as soon as it leaves the base — and shake it hard, upside down, for a couple of seconds.
Set it back on and run a second cycle. Most slushies are done after two; a very solid mix might want three. The shake is what makes the difference: it drops the unblended top layer back onto the blades, which is exactly what a thick mixture cannot do on its own.
If it will not move
If the motor is running but nothing is turning over, you have too little liquid or too large a frozen piece jammed against the blades. Lift the bottle off, add 30 ml more liquid, shake, and try again. Adding liquid a little at a time is much easier than rescuing a mixture that has gone thin.
Do not run cycle after cycle against a jam. Nothing is being blended and the motor is working against a load it cannot move.
Serving and keeping it
A slushie is at its best within about a minute of blending and starts separating after five. Drink it straight from the cap rather than pouring it, which is the practical argument for making it in the bottle you drink from.
If you want to make it slightly ahead, blend it thicker than you want and let it stand — it loosens as it warms. Do not put a blended slushie back in the freezer; it sets into a solid block that will not re-blend.
Cleaning up
Fruit sugar is sticky and dries into a varnish, so rinse the bottle straight away. Warm water, a drop of soap, one 30-second cycle.
The bottle opens top and bottom, so unscrew the base and rinse the blade side under the tap once the water cycle has done the bulk of it.