Spiced Blueberry and Onion Sauce

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A truly, delicious, savoury fruit sauce.

Anglo-Saxon cooking used to have a lot more savoury fruit sauces like this, so it’s a real blast from the past. A splodge of it really does go great on a dinner plate, and may just give cranberry sauce a bit of a long-overdue run for its money next Christmas.

The first year, you’ll make one tentative batch: the second year, you’ll be doubling and tripling the batch, for presents.

You can make this with sugar, or honey, or you can make it sugar-free.

The recipe

Jar size choices: 125 ml (1/2 cup / 4 oz) OR quarter-litre (1/2 US pint / 250 ml / 8 oz)

Processing method: Water bath or steam canning

Yield: 4 x quarter-litre (1/2 US pint) jars

Headspace: 1 cm (1/4 inch)

Processing time: 10 minutes

Spiced Blueberry and Onion Sauce

Prep time: 

Cook time: 

Total time: 

Yield: 4 x quarter-litre (1/2 US pint) jars

Serving size: 2 tablespoons

Calories: 17

Fat: .1 g

  • 700 g blueberries (About 5 cups. 1½ lbs)
  • 125 g onion, diced (3/4 cup, 4½ oz in weight)
  • 2 medium oranges
  • 175 ml white vinegar (3/4 cup, 6 oz)
  • 2 tablespoons freshly-grated ginger
  • ½ teaspoon salt or salt sub
  • 1 teaspoon mustard seed
  • ¼ teaspoon ground cinnamon
  • ¼ teaspoon ground cloves
  • ¼ teaspoon ground cardamom
  • ½ teaspoon ground black pepper
  • 2 tablespoons lemon juice
  • 2 teaspoons Pomona pectin powder
  • 1 teaspoon liquid stevia OR 200 g white sugar (1 cup / 8 oz) OR 125 ml honey (1/2 cup / 4 oz)
  • 2 teaspoons calcium water
  1. Get a large pot.
  2. Add to it the washed blueberries (stems removed) and diced onion.
  3. Wash the oranges. Zest them and add the zest to the pot. Juice them and add the juice to the pot.
  4. Add to the pot everything from the vinegar down to and including pepper.
  5. Bring to a boil, stirring constantly, then lower to a low simmer and let simmer uncovered for 15 minutes.
  6. Put the lemon juice in a bowl.
  7. Whisk in the pectin powder all at once and then either the sugar or liquid stevia or honey, set aside.
  8. After the 15 minutes, stir the calcium water into the pot mixture.
  9. Stir in the lemon and pectin mixture. Bring back to a boil, if needed, and let boil for one minute.
  10. Remove from heat.
  11. Spoon into quarter-litre (1/2 US pint) jars.
  12. Leave 1 cm (1/4 inch) headspace.
  13. Debubble, adjust headspace.
  14. Wipe jar rims.
  15. Put lids on.
  16. Process in a water bath or steam canner.
  17. Process jars for 10 minutes; increase time as needed for your altitude.
  18. Best after at least a month of jar time.

Reference information

How to water bath process.

How to steam can.

When water-bath canning or steam canning, you must adjust the processing time for your altitude.

For salt substitute, Herbamare Sodium-Free was used.

For stevia, Better Stevia liquid stevia was the stevia used.

More information about Sugar and Salt-Free Canning in general.

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Recipe notes

  • You can dice the onion in the food processor with the pulse button, if you like.
  • For the ginger, you can just use 2 tablespoons of minced ginger from a tube. You can also use 1 1/2 teaspoons ground ginger instead.
  • To use alternative sweeteners such as honey, Splenda, agave, etc, contact Pomona directly to inquire about amounts they would suggest and how to incorporate. It’s almost certainly possible.


Recipe source

Duffy, Allison Carroll. Preserving with Pomona’s Pectin. Beverly, MA: Fair Winds Press. 2013. Page 138.


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Nutrition information

Regular version with sugar and salt

Per 2 tablespoons:

  • 35 calories and 36 mg sodium

Spiced Blueberry and Onion Sauce Nutrition Regular

Sugar and salt-free version

Per 2 tablespoons:

  • 17 calories and 5 mg sodium.
  • Weight Watchers PointsPlus®: 1 to 2 tablespoons, 0 points; 3 to 7 tablespoons: 1 point.

Spiced Blueberry and Onion Sauce nutrition


* Nutrition info provided by http://caloriecount.about.com

* PointsPlus™ calculated by healthycanning.com. Not endorsed by Weight Watchers® International, Inc, which is the owner of the PointsPlus® registered trademark.

* Better Stevia ® is a registered trademark of the NOW Foods Company.

* Herbamare ® is a registered trademark of the A. Vogel Corporation.

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