Easy Sugar Free Blueberry Syrup for Italian Cream Soda

Make your own easy sugar free blueberry syrup for Italian cream soda in just 15 minutes. After making this many times, I discovered the trick is to use a combination of erythritol and allulose for the perfect sugar-free sweetness. This syrup is light, fresh, and so much better than store-bought. Jump to the recipe card or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Creamy Peach Protein Shake for Quick Summer Breakfast and Crispy Sticky Chicken Bao Buns Recipe for Easy Dinner.

Why This Easy Sugar Free Blueberry Syrup for Italian Cream Soda Is Pure Comfort
- No refined sugar or artificial sweeteners
- Ready in just 15 minutes
- Versatile – use in drinks, on pancakes, or in yogurt
- Perfect for a healthier, refreshing drink
What You'll Need for Easy Sugar Free Blueberry Syrup for Italian Cream Soda
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- Fresh blueberries
- Erythritol
- Allulose
- Vanilla extract
- Optional: Whipped cream
- Optional: Mint leaves

π Ingredient Notes
- Erythritol: A natural, zero-calorie sweetener. You can find it in most grocery stores or online.
- Allulose: A rare sugar that occurs naturally in some fruits. It has a low glycemic index and is about 70% as sweet as sugar. You can substitute it with more erythritol, but the syrup may thicken less.
π Tools & Equipment I Recommend
- Erythritol β Zero-calorie, natural sweetener β See on Amazon
- Allulose β Low glycemic index, natural sweetener β See on Amazon

How to Make Easy Sugar Free Blueberry Syrup for Italian Cream Soda
- Step 1: Combine blueberries, erythritol, allulose, and 1/4 cup water in a saucepan. Cook over medium heat until berries burst and mixture thickens, about 10-15 minutes.
- Step 2: Stir in vanilla extract. Let the syrup cool, then transfer to a glass bottle or jar. Store in the fridge.
- Step 3: To make an Italian cream soda, fill a glass with ice, pour in 2-3 tablespoons of syrup, and top with sparkling water. Stir well and add whipped cream and mint leaves if desired.
Cook's Tips for Perfect Easy Sugar Free Blueberry Syrup for Italian Cream Soda
- Common mistake and fix: Don't overcook the syrup. It can become too thick and caramelize. If this happens, add a little water and stir to thin it out.
- Tip: For a smoother syrup, you can blend the cooked berries and strain the mixture before adding the vanilla extract.
- Tip: This syrup keeps in the fridge for up to 2 weeks. Give it a good shake before using.
Storing & Reheating Easy Sugar Free Blueberry Syrup for Italian Cream Soda
Short-Term Storage
Store in an airtight container in the fridge. Store in an airtight container in the fridge for up to 2 weeks Make-ahead tip: Yes, make ahead and store in the fridge
Freezing Easy Sugar Free Blueberry Syrup for Italian Cream Soda
Freeze for up to 3 months. Thaw in the fridge overnight before using.
Recipe Notes
- Chef tip: For a smoother syrup, blend the cooked berries and strain the mixture before adding the vanilla extract.
- Best substitution: You can substitute allulose with more erythritol, but the syrup may thicken less.
- Make-ahead: Yes, make ahead and store in the fridge for up to 2 weeks.
- Scaling: This recipe can be doubled or tripled to make a larger batch.
- Troubleshooting: If the syrup becomes too thick, add a little water and stir to thin it out.
Want to level up this recipe?
Immersion blender β Easy to blend and strain the syrup for a smoother texture β Check price on Amazon
Easy Sugar Free Blueberry Syrup for Italian Cream Soda

Ingredients
Main Ingredients
- Fresh blueberries
- Erythritol
- Allulose
Seasonings
- Vanilla extract
Optional Toppings
- Whipped cream
- Mint leaves
Instructions
- Step 1: Combine blueberries, erythritol, allulose, and 1/4 cup water in a saucepan. Cook over medium heat until berries burst and mixture thickens, about 10-15 minutes.
- Step 2: Stir in vanilla extract. Let the syrup cool, then transfer to a glass bottle or jar. Store in the fridge.
- Step 3: To make an Italian cream soda, fill a glass with ice, pour in 2-3 tablespoons of syrup, and top with sparkling water. Stir well and add whipped cream and mint leaves if desired.
Notes
- Chef tip: For a smoother syrup, blend the cooked berries and strain the mixture before adding the vanilla extract.
- Best substitution: You can substitute allulose with more erythritol, but the syrup may thicken less.
- Make-ahead: Yes, make ahead and store in the fridge for up to 2 weeks.
- Scaling: This recipe can be doubled or tripled to make a larger batch.
- Troubleshooting: If the syrup becomes too thick, add a little water and stir to thin it out.
Storage
- Fridge: Store in an airtight container in the fridge for up to 2 weeks
- Freezer: Freeze for up to 3 months. Thaw in the fridge overnight before using.
- Make ahead: Yes, make ahead and store in the fridge
Nutrition Per Serving
- Calories: 10
- Protein: 0g
- Fat: 0g
- Carbs: 2g
- Fiber: 0g
- Sugar: 0g
- Sodium: 0mg
- Cholesterol: 0mg
- Sat. Fat: 0g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Sugar Free Blueberry Syrup for Italian Cream Soda FAQs
Yes, frozen blueberries work just as well. You may need to cook the syrup a little longer.
The syrup may have been overcooked or not enough water was used. Try adding a little water and stirring to thin it out.
Yes, the syrup can be made ahead and stored in the fridge for up to 2 weeks.
Yes, this syrup can be used in pancakes, waffles, yogurt, or any other recipe that calls for blueberry syrup.
Yes, this syrup is low in carbohydrates and suitable for a low-carb diet. Each serving has about 6 net carbs.
A Warm Final Note
I can’t wait for you to try Easy Sugar Free Blueberry Syrup for Italian Cream Soda and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out β I love hearing from you!






