Caramelized Onion and Kale Slaw

Highlighted under: Cozy Home-Cooked Recipes

I love how simple ingredients can transform into something extraordinary, and this Caramelized Onion and Kale Slaw is a prime example. The sweet, rich flavor of caramelized onions paired with the earthiness of kale creates a delightful balance that adds a pop to any meal. Toss in a tangy dressing, and you've got a refreshing side dish that's perfect for barbecues or cozy dinners at home. I can't wait for you to experience this twist on traditional slaw!

Emily

Created by

Emily

Last updated on 2026-01-08T15:26:43.631Z

When I first tried caramelizing onions for this slaw, I was amazed at how their natural sweetness intensified with a bit of patience. I learned to cook them slowly over low heat to achieve that golden-brown perfection, which really enhances the overall flavor of the dish. The kale adds a crunchy contrast that makes this slaw interesting and satisfying.

Another thing I discovered is that letting the slaw sit for a bit after you dress it allows the flavors to meld beautifully. I recommend preparing it ahead of time for gatherings so that the incredible taste develops to its full potential. You won't believe how good it tastes!

Why You'll Love This Recipe

  • Savory sweetness from perfectly caramelized onions
  • Crunchy kale that stays fresh and vibrant
  • A unique twist on traditional coleslaw that's both healthy and satisfying

Understanding the Ingredients

The star of this slaw is undoubtedly the caramelized onions. As they cook, their natural sugars break down, resulting in a deep, sweet flavor that complements the earthy kale beautifully. Make sure to slice the onions uniformly to ensure even cooking. This technique not only enhances the taste but also provides a pleasing texture that contrasts well with the crunch of the kale.

Kale is not just a healthy addition, but it also holds up well in salads, retaining its texture longer than softer leafy greens. When chopping the kale, be sure to remove the stems, as they can be tough and fibrous. A massage with a little bit of your dressing can help tenderize kale before combining it with other ingredients, making each bite more enjoyable.

Perfecting the Dressing

The dressing balances the sweetness of the caramelized onions and the bitterness of the kale, creating a bright and robust flavor profile. Apple cider vinegar adds the necessary acidity that cuts through the richness of the mayonnaise. If you're looking for a lighter option, you can substitute the mayonnaise with Greek yogurt or a dairy-free alternative, which will add creaminess without the density.

Honey adds natural sweetness to the dressing, but feel free to adjust this based on your preference. Maple syrup or agave nectar can be used as substitutes for a vegan version. Just whisk it all together until it's smooth; a small bowl works best to create an emulsion that coats your slaw evenly.

Make-Ahead and Storage Tips

This slaw is an excellent make-ahead dish! Prepare it a few hours in advance and let it chill in the refrigerator. The resting period allows the flavors to meld beautifully. Just keep in mind that the kale will soften as it sits, so for extra crunch, you might want to add the dressing closer to serving time.

If you have leftovers, store the slaw in an airtight container in the fridge. It can last for up to three days. However, the texture may change slightly as the kale continues absorbing the dressing. To breathe new life into leftover slaw, consider tossing in a handful of nuts for added crunch or mixing in some diced apples for a fresh element.

Ingredients

Gather the following ingredients to create this delicious slaw:

Slaw Ingredients

  • 2 large onions, sliced
  • 1 bunch of kale, stems removed and chopped
  • 1/4 cup mayonnaise
  • 2 tablespoons apple cider vinegar
  • 1 tablespoon honey
  • Salt and pepper, to taste

Make sure to chop the kale finely for optimal texture!

Instructions

Follow these steps to make your Caramelized Onion and Kale Slaw:

Caramelize the Onions

In a large skillet over medium heat, add a drizzle of olive oil and the sliced onions. Cook slowly, stirring occasionally, for about 15-20 minutes until golden brown and caramelized. Season with salt and pepper.

Prepare the Dressing

In a small bowl, whisk together the mayonnaise, apple cider vinegar, honey, salt, and pepper until smooth. Adjust seasoning to taste.

Combine Ingredients

In a large bowl, combine the chopped kale and caramelized onions. Pour the dressing over the mixture and toss until well coated.

Let it Sit

Allow the slaw to sit for at least 10 minutes before serving to let the flavors meld together.

Enjoy your slaw as a side dish or topping for sandwiches!

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Pro Tips

  • For an extra crunch, consider adding some toasted nuts or seeds on top before serving.

Serving Suggestions

This Caramelized Onion and Kale Slaw pairs excellently with grilled meats, making it a delightful side for summer barbecues. Try serving it alongside barbecued chicken or a hearty burger for a flavor contrast that enhances the overall meal. It can also stand alone as a healthy lunch option with added protein like chickpeas or grilled shrimp.

For a more substantial dish, consider adding other ingredients such as sliced radishes for an extra crunch or avocado for creaminess. I love serving this slaw in tacos instead of traditional toppings for a unique spin that adds both flavor and texture to your meal.

Dietary Variations

This slaw is naturally gluten-free and can be easily adapted for various dietary needs. For a vegan version, simply substitute the mayonnaise with a plant-based alternative and use maple syrup instead of honey. This way, you can enjoy all the delightful flavors while respecting dietary restrictions.

If you're looking to reduce calorie content, consider using a light mayonnaise or Greek yogurt, as mentioned earlier. Additionally, playing around with the vinegars can create new flavor profiles – try rice vinegar for a milder taste or balsamic for a richer sweetness.

Questions About Recipes

→ Can I use other types of greens instead of kale?

Absolutely! You can substitute the kale with shredded cabbage or even spinach for a different flavor profile.

→ How long can I store the slaw in the refrigerator?

It can be stored in an airtight container for up to 3 days, but it's best enjoyed fresh.

→ Can I make this slaw vegan?

Yes! You can replace the mayonnaise with a vegan alternative and use maple syrup instead of honey.

→ What dishes pair well with this slaw?

This slaw complements grilled meats, fish tacos, or sandwiches perfectly and adds a refreshing touch to any meal.

Caramelized Onion and Kale Slaw

I love how simple ingredients can transform into something extraordinary, and this Caramelized Onion and Kale Slaw is a prime example. The sweet, rich flavor of caramelized onions paired with the earthiness of kale creates a delightful balance that adds a pop to any meal. Toss in a tangy dressing, and you've got a refreshing side dish that's perfect for barbecues or cozy dinners at home. I can't wait for you to experience this twist on traditional slaw!

Prep Time15 minutes
Cooking Duration20 minutes
Overall Time35 minutes

Created by: Emily

Recipe Type: Cozy Home-Cooked Recipes

Skill Level: Easy

Final Quantity: 4 servings

What You'll Need

Slaw Ingredients

  1. 2 large onions, sliced
  2. 1 bunch of kale, stems removed and chopped
  3. 1/4 cup mayonnaise
  4. 2 tablespoons apple cider vinegar
  5. 1 tablespoon honey
  6. Salt and pepper, to taste

How-To Steps

Step 01

In a large skillet over medium heat, add a drizzle of olive oil and the sliced onions. Cook slowly, stirring occasionally, for about 15-20 minutes until golden brown and caramelized. Season with salt and pepper.

Step 02

In a small bowl, whisk together the mayonnaise, apple cider vinegar, honey, salt, and pepper until smooth. Adjust seasoning to taste.

Step 03

In a large bowl, combine the chopped kale and caramelized onions. Pour the dressing over the mixture and toss until well coated.

Step 04

Allow the slaw to sit for at least 10 minutes before serving to let the flavors meld together.

Extra Tips

  1. For an extra crunch, consider adding some toasted nuts or seeds on top before serving.

Nutritional Breakdown (Per Serving)

  • Calories: 150 kcal
  • Total Fat: 10g
  • Saturated Fat: 1g
  • Cholesterol: 5mg
  • Sodium: 150mg
  • Total Carbohydrates: 14g
  • Dietary Fiber: 2g
  • Sugars: 4g
  • Protein: 2g