Onion and Mustard Spinach Salad Dressing

Elevate your salad game with this Onion and Mustard Spinach Salad Dressing—a delightful blend of bold flavors and creamy texture that brings a gourmet touch to any leafy greens. This homemade dressing features caramelized yellow onions for a rich, savory base, perfectly balanced with the tangy bite of Dijon mustard, the subtle sweetness of honey, and the zing of red wine vinegar. A touch of garlic enhances the flavor profile, while olive oil and water create a silky, pourable consistency perfect for coating fresh spinach leaves. Ready in just 25 minutes, this versatile dressing is ideal for everyday salads or as a vibrant topping for grain bowls and roasted vegetables. Plus, it’s made with simple pantry staples and can be refrigerated for up to three days, making it a quick and convenient addition to your meal prep repertoire.

Nutriscore Rating: 53/100

Prep Time:15 mins

Cook Time:10 mins

Total Time:25 mins

Servings: 6

Ingredients

• 1 medium Yellow onion
• 3 tablespoons Olive oil
• 1 clove Garlic
• 2 teaspoons Dijon mustard
• 1 tablespoon Honey
• 2 tablespoons Red wine vinegar
• 0.5 teaspoons Salt
• 0.25 teaspoons Black pepper
• 2 tablespoons Water

Directions

Step 1

Peel and finely chop the yellow onion.

Step 2

Heat 2 tablespoons of olive oil in a small skillet over medium heat. Add the chopped onion and cook for about 8-10 minutes, stirring occasionally, until the onion is soft and golden brown. Remove from heat and allow to cool slightly.

Step 3

Peel and finely mince the garlic clove.

Step 4

In a mixing bowl, whisk together the Dijon mustard, honey, red wine vinegar, and minced garlic until smooth.

Step 5

Add the caramelized onions to the bowl and mix well to combine.

Step 6

Gradually whisk in 1 tablespoon of olive oil and 2 tablespoons of water to thin out the dressing to your desired consistency.

Step 7

Season the dressing with salt and black pepper. Taste and adjust seasoning if necessary.

Step 8

Serve immediately over fresh spinach or store in an airtight container in the refrigerator for up to 3 days. Shake or stir well before using.

Nutrition Facts

Serving size	(248.9g)

Amount per serving	% Daily Value*
Calories	517.4

Total Fat 44.1g	0%
Saturated Fat 6.6g	0%
Polyunsaturated Fat 4.0g
Cholesterol 0mg	0%
Sodium 1418.1mg	0%
Total Carbohydrate 28.9g	0%
Dietary Fiber 2.1g	0%
Total Sugars 21.9g
Protein 1.6g	0%

Vitamin D 0IU	0%
Calcium 36.2mg	0%
Iron 0.8mg	0%
Potassium 213.4mg	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: 76.5%

Protein: 1.2%

Carbs: 22.3%