This delicious seedless blackberry sauce is easily made with frozen blackberries and flavored with a hint of cardamom. It’s great as a cheesecake topping or with whipped cream and waffles.

Jump to:
Why make this recipe?
This blackberry sauce is super simple to make and works magic on baked sweets.
What’s in the sauce?
This sauce is made with frozen blackberries, sugar, corn starch, lemon and ground cardamom. Cardamom is a very fragrant spice with a citrus flavor that works incredibly well with blackberries and other fruit. (It’s delicious in this lemon cardamom cake and in these spiced raspberry Linzer cookies!)
NOTE: You can use fresh blackberries instead of frozen ones. Use the same amount.

How to make it:
See full ingredients & instructions in the recipe card below!

Step 1. Cook blackberries, sugar and lemon juice in a non-reactive pan until the fruit is thawed.

Step 2. Add corn starch and cardamom and cook until the fruit is soft.

Step 3. Press the sauce through a sieve using a wooden spoon.
Blackberry sauce uses:
- Use this sauce as a topping for cheesecake.
- Spoon the sauce onto waffles or pancakes.
- Drizzle the sauce onto chocolate cakes and cupcakes. (It’s very good on the chocolate mousse frosting of these mini chocolate cupcakes!)
- Mix the sauce into yogurt.
- Drizzle the sauce onto ice cream.
Frequently asked questions:
You can serve the sauce warm, at room temperature or cold. I personally think it’s best warm on waffles and cold on cheesecake and other cakes.
This recipe makes about ⅔ cup of sauce.
Store the sauce in an airtight container in the fridge.
Yes, I’ve tested freezing this sauce and it does fine. (Freezing can sometimes affect the texture of sauces thickened with corn starch, but I have not seen this happen with this blackberry sauce.)
More delicious berry recipes:
- Bavarian Cream Recipe (with Raspberry or Hazelnut)1 Hours 20 Minutes
- Apple Frangipane Tart with Cranberries, Orange and Cardamom1 Hours 20 Minutes
Did you make this recipe? Please leave a star rating or comment! Thanks!
Full Printable Recipe

Seedless Blackberry Sauce with Cardamom
Equipment:
- measuring cups and spoons
- citrus juicer
- small non-reactive pan
- wooden spoon
- sieve
Ingredients:
- 2 cups frozen blackberries* (10 ounces)
- ¼ cup granulated sugar
- 1 teaspoon lemon juice
- ¼ teaspoon corn starch
- ¼ teaspoon ground cardamom
Instructions:
- Add blackberries, sugar and lemon juice to a non-reactive pan. Cook uncovered, stirring occasionally, until the fruit is thawed and beginning to break down (about 8 minutes).
- Add corn starch and cardamom and continue to cook until the fruit is broken down (about 3 minutes longer).
- Press the sauce through a sieve with a wooden spoon.
- Serve the sauce warm, at room temperature or cold.
Notes:
Nutrition Information (Estimated):
Nutrition values provided on this website are generated from a nutrition database and are estimates only. The accuracy of the nutrition information for any recipe on this website is not guaranteed. Nutrition values can vary quite a lot depending on which brands are used.
Leave a Comment