Caramelized Onion Dip

November 11, 2025
Creamy caramelized onion dip in a bowl, ready to serve as a delicious appetizer.

This Caramelized Onion Dip is creamy and rich, packed with sweet onions that are slowly cooked to perfection. It’s great for parties or cozy nights at home!

I can’t resist dipping crunchy chips into this tasty goodness. Just a heads up, it might disappear quickly, so make sure to savor every bite! 😄

Key Ingredients & Substitutions

Yellow Onions: These are perfect for caramelizing as they have natural sweetness. If you don’t have yellow onions, you can use sweet onions like Vidalia or red onions for a different flavor.

Butter and Olive Oil: A mix of both gives great flavor. You could substitute with just one; use margarine for a dairy-free option or a plant-based butter if needed.

Sour Cream: For a tangy touch, sour cream is key. If you need a healthier choice, Greek yogurt works as a good substitute. It will give a similar creaminess with added protein.

Mayonnaise: This adds creaminess too. If you prefer a lighter dip, use a reduced-fat mayo or a dairy-free version for a vegan option.

How Do I Caramelize Onions Perfectly?

Caramelizing onions is all about patience. This enhances their sweetness and flavor. Here’s how to do it right:

  • Slice your onions thinly for even cooking.
  • Heat butter and olive oil over medium-low heat. This helps prevent burning.
  • Once added, stir those onions occasionally, scraping the bottom to avoid sticking.
  • Let them cook slowly for 30-40 minutes until they are golden brown. Adjust the heat if they start to burn.
  • Cool the onions slightly before mixing them into the dip to maintain the right texture.

Remember, the longer and slower you cook them, the better the caramelization!

Caramelized Onion Dip

How to Make Caramelized Onion Dip

Ingredients You’ll Need:

  • 3 large yellow onions, thinly sliced
  • 3 tablespoons unsalted butter
  • 1 teaspoon olive oil
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 cup sour cream
  • 1 cup mayonnaise
  • 1 teaspoon Worcestershire sauce
  • 1/2 teaspoon garlic powder
  • 1 tablespoon fresh parsley, finely chopped (plus extra for garnish)
  • Crackers or chips, for serving

Time Needed:

This delicious dip will take about 45 minutes to prepare, with about 40 minutes spent caramelizing the onions and 5 minutes for mixing everything together. Plus, it’s best enjoyed after it has had a little time to chill, so be sure to plan ahead!

Step-by-Step Instructions:

1. Caramelize the Onions:

Start by heating the unsalted butter and olive oil together in a large skillet over medium-low heat. Once it’s warm, add the thinly sliced onions and sprinkle with salt. The key to great caramelized onions is cooking them slowly, so stir them occasionally to prevent burning. Let them cook until they become a deep golden brown, which usually takes about 30-40 minutes. Remember to keep an eye on them and adjust the heat if necessary. Once done, remove from heat and let cool.

2. Mix the Dip Base:

While the onions are cooling, grab a mixing bowl and combine the sour cream, mayonnaise, Worcestershire sauce, garlic powder, black pepper, and the finely chopped parsley. Use a spoon or spatula to mix everything together until it’s nice and smooth.

3. Combine and Chill:

Now it’s time to bring everything together! Fold the cooled caramelized onions into the creamy mixture, making sure to save a little of the caramelized onions for garnish later. Stir gently until everything is well mixed and beautifully combined.

4. Serve and Enjoy:

Transfer the dip into a serving bowl. Sprinkle the reserved caramelized onions on top and add a little extra parsley for a pop of color. Serve this tasty dip with your choice of crackers or chips. Dig in and enjoy this flavorful treat!

Can I Use Different Types of Onions for This Dip?

Absolutely! While yellow onions are ideal for caramelizing due to their sweetness, you can also use sweet onions like Vidalia or even red onions for a variety in flavor. Just keep in mind that different types of onions may have slightly different cooking times.

Can I Make This Dip Ahead of Time?

Yes, this dip is perfect for making ahead! You can prepare it a day in advance and store it in the fridge. Just let it chill to allow the flavors to meld together. When you’re ready to serve, give it a quick stir and garnish with fresh onions and parsley.

What Can I Use Instead of Mayonnaise?

If you prefer a lighter option or need a substitute, Greek yogurt works wonderfully in place of mayonnaise. It adds creaminess and a bit of tang, while also being lower in calories.

How to Store Leftover Dip?

Store any leftover dip in an airtight container in the refrigerator for up to 3-4 days. Just make sure to give it a good stir before serving again, as it may thicken when stored.

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