Tangy Onion Relish

Elevate your dishes with this irresistibly flavorful Tangy Onion Relish, a perfect balance of sweet, savory, and slightly spicy notes. Thinly sliced red onions are gently caramelized and simmered with apple cider vinegar, brown sugar, and Dijon mustard to create a glossy, vibrant condiment that adds depth to any meal. With just 10 minutes of prep time and a quick 20-minute cook, this relish is an easy yet sophisticated addition to burgers, sandwiches, grilled meats, or a cheese board. Customize the heat with optional red chili flakes, and enjoy it warm or chilled—either way, this versatile recipe is sure to steal the show.

Nutriscore Rating: 74/100

Prep Time:10 mins

Cook Time:20 mins

Total Time:30 mins

Servings: 6

Ingredients

• 2 large red onions
• 2 tablespoons olive oil
• 3 tablespoons apple cider vinegar
• 2 tablespoons brown sugar
• 1 teaspoon Dijon mustard
• 0.5 teaspoons salt
• 0.25 teaspoons black pepper
• 0.25 teaspoons red chili flakes (optional)
• 2 tablespoons water

Directions

Step 1

Peel and thinly slice the red onions into half-moons.

Step 2

Heat the olive oil in a medium skillet over medium heat.

Step 3

Add the sliced onions to the skillet and sauté for 8-10 minutes, stirring occasionally, until they are softened and lightly caramelized.

Step 4

Stir in the apple cider vinegar, brown sugar, Dijon mustard, salt, black pepper, and red chili flakes (if using).

Step 5

Add the water and mix well to combine all the ingredients.

Step 6

Reduce the heat to low and simmer the mixture for 8-10 minutes, stirring occasionally, until the liquid reduces and the relish becomes thick and glossy.

Step 7

Taste and adjust seasoning if needed.

Step 8

Remove from heat and allow the relish to cool slightly before serving.

Step 9

Store in an airtight container in the refrigerator for up to one week. Serve warm or chilled as desired.

Nutrition Facts

Serving size	529 grams (529.0g)

Amount per serving	% Daily Value*
Calories	502

Total Fat 29.60g	38%
Saturated Fat 4.40g	22%
Polyunsaturated Fat 2.70g
Cholesterol 0mg	0%
Sodium 1319mg	57%
Total Carbohydrate 56.10g	20%
Dietary Fiber 7.70g	28%
Total Sugars 40.20g
Protein 4.60g	9%

Vitamin D 0IU	0%
Calcium 115mg	9%
Iron 1mg	7%
Potassium 652mg	14%

*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: 52.3%

Protein: 3.6%

Carbs: 44.1%