Low Carb Sweet and Tangy Onion Jam

Elevate your dishes with this irresistibly flavorful Low Carb Sweet and Tangy Onion Jam—a perfect balance of caramelized sweetness and vibrant tanginess, all while being keto-friendly! Crafted with thinly sliced yellow onions, a touch of erythritol or monk fruit sweetener, and a blend of balsamic and apple cider vinegars, this onion jam delivers gourmet flavor without the excess carbs. Slow-cooked to golden perfection, the natural sweetness of the onions is enhanced with the optional addition of fresh thyme for an herby twist. Whether spread on low-carb crackers, paired with roasted meats, or as a topping for cheese platters, this versatile condiment adds depth and sophistication to any meal. Ready in just under an hour, it’s the perfect make-ahead recipe to keep in your fridge for guilt-free indulgence all week long!

Nutriscore Rating: 82/100

Prep Time:10 mins

Cook Time:50 mins

Total Time:60 mins

Servings: 10

Ingredients

• 3 large (about 900g total) yellow onions
• 2 tablespoons olive oil
• 3 tablespoons erythritol or monk fruit sweetener
• 2 tablespoons balsamic vinegar
• 1 tablespoon apple cider vinegar
• 0.5 teaspoon salt
• 0.25 teaspoon black pepper
• 1 teaspoon fresh thyme leaves (optional)
• 0.25 cup water

Directions

Step 1

Peel and thinly slice the yellow onions into half moons.

Step 2

Heat a large skillet or saucepan over medium heat and add the olive oil.

Step 3

Once the oil is warm, add the sliced onions and sprinkle with salt to help them soften.

Step 4

Cook the onions on medium heat for 10 minutes, stirring frequently, until they begin to soften and turn slightly translucent.

Step 5

Reduce the heat to medium-low and continue to cook the onions for another 25-30 minutes, stirring occasionally. Let the onions caramelize slowly—do not rush this step.

Step 6

When the onions are deep golden brown and caramelized, sprinkle the erythritol (or monk fruit sweetener) over them and stir well.

Step 7

Add the balsamic vinegar, apple cider vinegar, black pepper, and water. Stir to combine, ensuring the sweetener dissolves and the mixture becomes saucy.

Step 8

Simmer on low heat for 10-15 minutes, stirring occasionally, until the mixture thickens to a jam-like consistency. If using, stir in the fresh thyme leaves during the final 5 minutes of cooking.

Step 9

Remove the skillet from heat and let the onion jam cool slightly.

Step 10

Transfer the onion jam to a clean, airtight glass jar and store in the refrigerator for up to one week. Serve chilled or at room temperature!

Nutrition Facts

Serving size	(2876.8g)

Amount per serving	% Daily Value*
Calories	1365.3

Total Fat 30.5g	0%
Saturated Fat 5.4g	0%
Polyunsaturated Fat 2.7g
Cholesterol 0mg	0%
Sodium 1289.6mg	0%
Total Carbohydrate 299.1g	0%
Dietary Fiber 46.8g	0%
Total Sugars 120.2g
Protein 29.7g	0%

Vitamin D 0IU	0%
Calcium 586.5mg	0%
Iron 5.7mg	0%
Potassium 4042.7mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 17.3%

Protein: 7.5%

Carbs: 75.3%