Copycat McDonald's Blue Raspberry Slush Recipe
The fast-food slush machines rely on a pre-made sugar syrup base churned with ice, not straight frozen juice, so dissolving sugar and a little corn syrup into water before blending is what gives this copycat the same smooth, not-icy, spoonable texture instead of a grainy shaved-ice consistency.
- Prep
- 10 min
- Cook
- 5 min
- Total
- 15 min
- Servings
- 4
Ingredients
- 2 cups water
- 3/4 cup granulated sugar
- 2 packets unsweetened soft drink mix, blue raspberry flavor
- 2 tablespoons light corn syrup
- 6 cups ice cubes
- 1/4 teaspoon blue food coloring (optional)
Nutrition per serving
- Calories
- 178
- Protein
- 0g
- Carbs
- 45g
- Fat
- 0g
Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.
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Instructions
- 1In a small saucepan, combine the water and sugar. Heat over medium, stirring often, until the sugar fully dissolves, about 2-3 minutes. Remove from heat and let cool to room temperature.
- 2Stir the drink mix packets and corn syrup into the cooled syrup until completely dissolved. Add food coloring if using.
- 3Pour the syrup into a blender and add the ice cubes.
- 4Blend on high in short bursts, stopping to scrape down the sides, until the mixture is thick, uniform, and spoonable but still pourable, 30-60 seconds total.
- 5Pour into cups and serve immediately with a wide straw.
Tips & variations
- Swap the blue raspberry mix for cherry, sour green apple, or fruit punch to match other flavors McDonald's has rotated through its slush lineup.
- The corn syrup is what keeps the texture from turning icy and hard within minutes; don't skip it even if the drink tastes sweet enough without it.
- Make the syrup base up to a week ahead and refrigerate it, then blend fresh with ice whenever a craving hits.
Storage & reheating
The finished slush is best consumed immediately since it melts and separates within 15-20 minutes at room temperature. The sugar syrup base (before blending with ice) keeps in an airtight container in the refrigerator for up to a week.
Tips from the Tulo kitchen
- Use a high-powered blender if possible; underpowered blenders can leave ice chunks that never fully crush into slush.
- Freeze the syrup in an ice cube tray first, then blend the flavored cubes with a bit of plain ice for a more concentrated, less watery slush.
FAQ
Does this copycat slush have caffeine like McDonald's soda-based drinks?
No. This recipe uses a fruit-flavored drink mix as its base, so it's naturally caffeine-free, unlike cola-flavored slush varieties.
Can I make this without a blender?
A blender or food processor is really the only practical way to get the fine, even ice crush a slush needs; a manual ice crusher will leave chunks too large for the texture to feel right.
Why does my homemade slush turn watery so fast?
Slush machines keep the mixture in constant motion at a controlled temperature, so at home it will always melt faster; serving it within a few minutes of blending and using plenty of ice relative to syrup helps it hold longer.