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Marinated Red Onions and a Zesty Dressing: A Culinary Two-for-One

My grandmother, a woman who believed in the power of simple, fresh ingredients, always had a jar of marinated red onions in her refrigerator. I remember sneaking slivers of them straight from the jar, the tangy-sweet bite a delightful contrast to their vibrant color. They were a staple in her kitchen, tossed into salads, layered onto sandwiches, and even stirred into hearty pasta dishes. This recipe, a variation of hers, not only delivers those addictive onions but also transforms the leftover marinade into a bright and flavorful salad dressing – a testament to resourceful cooking and delicious results.

Recipe Overview

Prep Time: 5 minutes
Cook Time: 2 minutes (optional)
Total Time: 30 minutes (minimum) / 24 hours 5 minutes (optimal)
Yields: 1 batch
Dietary Type: Vegan

Ingredients

1 red onion
1 tablespoon honey
½ cup balsamic vinegar
1 tablespoon thyme
¼ cup olive oil
1 teaspoon mustard
Salt to taste
Pepper to taste

Equipment Needed

Small bowl or plastic container with lid
Blender

Instructions

Begin by preparing the red onion. Slice it thinly, ideally using a mandoline for uniform thickness, and separate the rings. This will allow the marinade to penetrate more evenly.
Place the sliced red onion rings in a small bowl or a plastic container with a lid. A container with a tight-fitting lid is preferable for shaking and storage.
Pour the honey and balsamic vinegar over the onions. Add the thyme.
Cover the container with the lid and shake well to combine all the ingredients, ensuring the onions are well coated.
Place the container in the refrigerator for a minimum of 30 minutes, and up to 24 hours. The longer they marinate, the richer the flavor will be. Shake the container whenever you remember to redistribute the marinade.
(Optional Speeding Up the Process): For a quicker result, place the bowl or container in the microwave for 2 minutes. This will soften the onions and speed up the marinating process, making them ready in about 30 minutes. However, note that the flavor will not be as rich as if they were marinated for a longer period in the refrigerator.
Once the onions have marinated to your liking, they are ready to be served. Use them in salads, on sandwiches, or as a flavorful topping for pizzas or grilled dishes.
To make the dressing, take the remaining onions and the marinade from the container and place them into a blender. Be sure to scrape every last bit of that flavorful marinade!
Add the olive oil and mustard to the blender.
Blend until the mixture is completely smooth and emulsified.
Taste the dressing and adjust the seasoning as needed. Add salt and pepper to your preference.
If you desire a sweeter dressing, you may add a bit more honey or use honey mustard. Blend again to incorporate the added sweetness.

Expert Tips & Tricks

For a milder onion flavor, soak the sliced red onions in ice water for about 15-20 minutes before marinating. This helps to remove some of the sharpness.
Experiment with different types of vinegar. While balsamic provides a classic sweetness, red wine vinegar or apple cider vinegar can offer unique flavor profiles.
If you don’t have fresh thyme, dried thyme can be used. Use about 1 teaspoon of dried thyme for every tablespoon of fresh thyme.
To prevent the onions from discoloring, make sure they are fully submerged in the marinade.
For a richer dressing, consider adding a clove of garlic to the blender.
If the dressing is too thick, add a tablespoon of water or more olive oil to reach the desired consistency.

Serving & Storage Suggestions

The marinated red onions are a versatile addition to many dishes. They are delicious in salads, on burgers, in tacos, or even served as a condiment alongside grilled meats or vegetables. Store leftover onions in the refrigerator in an airtight container, submerged in the marinade, for up to a week.

The dressing can also be stored in the refrigerator in an airtight container for up to a week. The dressing may thicken upon refrigeration, so allow it to sit at room temperature for a few minutes before serving, or shake vigorously to re-emulsify.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	591.9 kcal	N/A
Calories from Fat	488 g	83%
Total Fat	54.3 g	83%
Saturated Fat	7.5 g	37%
Cholesterol	0 mg	0%
Sodium	61.3 mg	2%
Total Carbohydrate	29.1 g	9%
Dietary Fiber	1.9 g	7%
Sugars	22.1 g	88%
Protein	1.3 g	2%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

For a spicier kick, add a pinch of red pepper flakes to the marinade.
For a different herb flavor, substitute rosemary or oregano for the thyme.
To make a gluten-free version, ensure your mustard is gluten-free.
If you don’t have honey, maple syrup or agave nectar can be used as a substitute.
Experiment with different types of mustard, such as Dijon mustard or stone-ground mustard, for varying flavor profiles.
For a less sweet dressing, reduce the amount of honey.
For a dairy-free dressing, ensure your mustard does not contain any dairy.
Try adding a squeeze of lemon juice or orange juice to the marinade for a citrusy twist.

FAQs (Frequently Asked Questions)

Q: Can I use a white onion instead of a red onion?
A: While you can use a white onion, the red onion provides a slightly sweeter and milder flavor that works well in this recipe. It also adds a beautiful color to the dish.

Q: How long will the marinated onions last in the refrigerator?
A: The marinated onions will last for up to a week in the refrigerator, stored in an airtight container submerged in the marinade.

Q: Can I freeze the marinated onions?
A: Freezing is not recommended as it can alter the texture of the onions, making them mushy.

Q: Can I use dried thyme instead of fresh thyme?
A: Yes, you can substitute dried thyme for fresh thyme. Use about 1 teaspoon of dried thyme for every tablespoon of fresh thyme.

Q: Can I skip the honey if I want a less sweet dressing?
A: Yes, you can reduce or omit the honey altogether for a less sweet dressing. You may need to adjust the other ingredients to balance the flavors.

Final Thoughts

I hope this recipe inspires you to experiment with flavors and appreciate the versatility of simple ingredients. The marinated red onions and dressing are a testament to how a few pantry staples can transform everyday meals into something special. Don’t be afraid to get creative with your own variations, and most importantly, enjoy the process! I’d love to hear how this recipe turns out for you – please share your feedback and any delicious pairings you discover!

Marinated Red Onions and Dressing Recipe