Sour Apple & Blue Raspberry Slush Recipe

If you like your slush fruity with a sharper edge, this Sour Apple and Blue Raspberry combination is an easy one to try at home.

It mixes the tart green-apple character of Sour Apple with the sweeter berry flavour of Blue Raspberry, giving you a balanced sweet-and-sour slush.

The recipe uses an even 50/50 flavour split, so both flavours come through clearly.

What Flavours Are in This Slush?

This recipe combines:

• Sour Apple
• Blue Raspberry

Sour Apple brings the sharper, tangier side of the drink, while Blue Raspberry adds sweetness and a familiar classic-slush flavour.

Together they create a more balanced result than using either flavour on its own.

Sour Apple & Blue Raspberry Slush Recipe

For one full 1900ml batch, use:

• 185ml Core Mix
• 50ml Sour Apple Flavour Shot
• 50ml Blue Raspberry Flavour Shot
• Cold water to 1900ml total

The two flavours add up to the normal 100ml total Flavour Shot quantity.

How to Make It

Step 1: Measure the Core Mix

Add 185ml Core Mix to a suitable mixing jug or container.

Step 2: Add Sour Apple

Measure 50ml Sour Apple Flavour Shot and add it to the Core Mix.

Step 3: Add Blue Raspberry

Add 50ml Blue Raspberry Flavour Shot.

That gives you 100ml of flavour in total.

Step 4: Add Cold Water

Top up with cold water until the full mixture reaches 1900ml.

Mix thoroughly so the Core Mix and flavours are evenly distributed.

Step 5: Add to Your Slush Machine

Pour the mixture into your Ninja Slushi or other home slush machine.

Run the machine according to the manufacturer’s instructions until the drink reaches the consistency you prefer.

Why Do Sour Apple and Blue Raspberry Work Together?

The two flavours bring different characteristics to the drink.

Sour Apple gives you a sharp, tart fruit flavour.

Blue Raspberry adds sweetness and a softer berry note.

The 50/50 split keeps the drink balanced, with neither flavour completely dominating the other.

Can You Change the Ratio?

Yes.

If you want the Sour Apple to stand out more, try:

• 75ml Sour Apple
• 25ml Blue Raspberry

If you want a sweeter, more Blue Raspberry-led drink, reverse it:

• 25ml Sour Apple
• 75ml Blue Raspberry

The important thing is to keep the total flavour quantity at 100ml.

Want It Even Sharper?

If you already like the 50/50 version but want more sourness, increase the Sour Apple proportion rather than adding extra flavour overall.

For example:

• 60ml Sour Apple
• 40ml Blue Raspberry

That keeps the recipe balanced while shifting the finished taste towards the sour side.

Why Keep the Total Flavour at 100ml?

The standard Florida Syrups full-tank recipe uses 100ml of Flavour Shot.

When combining flavours, split that 100ml between them.

For example:

• 50ml + 50ml
• 60ml + 40ml
• 75ml + 25ml

Avoid adding 100ml of each flavour, because that doubles the intended flavour quantity and can change the balance of the finished slush.

Common Mistakes to Avoid

Adding extra syrup for a stronger taste

If you want one flavour to be stronger, change the ratio rather than increasing the total amount.

Guessing the quantities

Measure both flavours so you can repeat the same combination again.

Changing the water level

Top up to the normal 1900ml total volume rather than reducing the water to make the drink stronger.

Frequently Asked Questions

What flavours are in this slush?

It combines Sour Apple and Blue Raspberry.

How much of each flavour should I use?

The standard recipe uses 50ml Sour Apple and 50ml Blue Raspberry.

Can I make it more sour?

Yes. Increase the Sour Apple proportion while keeping the total flavour quantity at 100ml.

Can I make Blue Raspberry stronger?

Yes. Try 75ml Blue Raspberry and 25ml Sour Apple.

How much Core Mix do I need?

Use 185ml Core Mix for one full 1900ml batch.

Make Your Own Sour Apple & Blue Raspberry Slush

For the standard version, remember:

185ml Core Mix + 50ml Sour Apple + 50ml Blue Raspberry + cold water to 1900ml

Start with the 50/50 mix, then adjust the ratio next time depending on whether you want it sharper or sweeter.

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