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This Caramelized Onion Dip is rich, creamy, and packed with sweet jammy onions. Easy to make ahead and even better than store-bought.
Know Before You Scroll
What You’ll Need
Yellow onions, sour cream, Greek yogurt, Worcestershire sauce, fresh chives, parsley, vinegar, salt, and pepper.
Flavor Profile
Rich, creamy, savory, and slightly tangy with deeply sweet caramelized onions and fresh herbs.
Difficulty Level
Easy. The onions take a little patience, but the dip itself comes together in minutes.
Equipment Needed
Large nonstick skillet, rubber spatula, cutting board, chef’s knife, mixing bowl, whisk.
Top Tip
Let the onions cool completely before mixing the dip so the dairy stays thick and creamy.
Time-Saving Tips
Make the onions ahead and chill the dip overnight if you want the flavor even deeper by serving time.
Ingredient Swaps
Substitute plain whole milk Greek yogurt for low-fat if preferred. Red onions can be used for a sweeter flavor, and apple cider vinegar works well in place of white vinegar.
Why I Love This Recipe
There are plenty of onion dip recipes out there, but I wanted one that tasted like the very best version of classic onion dip—rich, creamy, and loaded with deeply caramelized onions instead of relying on dried onion soup mix. The trick is giving the onions time to become soft, sweet, and almost jam-like. A tiny pinch of baking soda speeds up the caramelization without sacrificing flavor, while a combination of sour cream and Greek yogurt keeps the dip rich but not overly heavy. I also added fresh herbs and a splash of Worcestershire sauce for extra depth that makes every bite taste homemade. It’s one of those recipes that’s even better after a night in the refrigerator, making it perfect for parties, holidays, or simply keeping on hand for snacking.
Ingredient Notes
Yellow Onions
Best Choice
Yellow onions have the perfect balance of sweetness and savory flavor once caramelized.
Substitutions
Sweet onions such as Vidalia make an even sweeter dip, while white onions provide a sharper flavor.
Sour Cream & Greek Yogurt
Best Choice
Full-fat sour cream paired with plain Greek yogurt creates the creamiest texture with balanced tanginess.
Substitutions
Use all sour cream for a richer dip or all Greek yogurt for a lighter version.
Worcestershire Sauce
Best Choice
Adds rich umami that enhances the caramelized onions without overpowering them.
Substitutions
Soy sauce (use half as much) or tamari for a similar savory boost.
Where to Find
Condiment aisle.
Fresh Herbs
Best Choice
Fresh chives and parsley brighten the rich dip and add color.
Substitutions
Fresh dill also works well, or use extra chives if that’s what you have.
Where to Find
Refrigerated produce section.
You can find the full, printable recipe at the top of this post, but you can read the detailed instructions with photos for each step below.
Step By Step Instructions
1
Cook the Onions Until Tender
Add the sliced onions to a large nonstick skillet with ¼ cup of the water, the oil, and salt. Bring to a boil over high heat, then cover the pan. Cook for about 10 minutes, or until the water has completely evaporated. At this point, the onions should be very soft and starting to sizzle in the oil rather than simmer in water.
2
Caramelize Until Deep Golden Brown
Remove the lid and reduce the heat to medium-high. Spread the onions into an even layer and press them against the bottom of the pan with a rubber spatula. Let them cook undisturbed for about 30 seconds, then stir and scrape up the browned bits. Repeat this process for 15 to 20 minutes, until the onions are deeply golden brown, very soft, and almost jammy. If they start scorching rather than browning, lower the heat slightly.
3
Finish and Cool the Caramelized Onions
Mix the baking soda with the remaining tablespoon of water, then stir it into the onions. Keep stirring for about 1 minute, until the liquid has evaporated and the onions become even softer and more deeply browned. Transfer them to a bowl and let them cool completely. Once cool, finely chop them—you should have about ⅔ cup.
4
Whisk Together the Creamy Base
Add the sour cream, Greek yogurt, Worcestershire sauce, white vinegar, salt, and a few grinds of black pepper to a medium bowl. Whisk until completely smooth and evenly combined. Give it a quick taste at this stage; it should be creamy and tangy with a savory edge, but remember the onions will add plenty of sweetness and depth.
5
Fold in the Onions and Fresh Herbs
Fold in the chopped caramelized onions along with the fresh chives and parsley until evenly combined.
6
Chill Before Serving
Cover and refrigerate the dip for at least 1 hour before serving. This isn’t just about serving it cold—the resting time allows the caramelized onion flavor to work its way through the creamy base. Stir well before serving, then taste and adjust with additional salt, pepper, vinegar, or Worcestershire sauce as needed.
Dip Recipes
Recipe
Caramelized Onion Dip
Ingredients
For the Caramelized Onions
- 1 pound yellow onions (about 2 medium, halved and sliced ¼-inch thick through the root)
- ¼ cup plus 1 tablespoon water
- 2 teaspoons neutral oil
- ¼ teaspoon kosher salt
- Pinch baking soda
For the Dip
- 1 cup sour cream
- ⅓ cup plain Greek yogurt (low-fat )
- 1 tablespoon finely chopped fresh chives
- 1 tablespoon finely chopped fresh parsley
- ½ teaspoon white vinegar
- 1 teaspoon Worcestershire sauce
- ½ teaspoon kosher salt (plus more to taste)
- Freshly ground black pepper
Instructions
- Combine the sliced onions, water, oil, and salt in a large nonstick skillet. Set the pan over high heat and bring everything to a boil. Cover and cook until the water has completely evaporated and the onions begin to fry in the oil, about 10 minutes.
- Remove the lid and lower the heat to medium-high. Spread the onions into an even layer, pressing them against the bottom of the pan with a rubber spatula. Let them cook undisturbed for about 30 seconds, then stir and scrape up any browned bits. Continue repeating this process of pressing, browning, and stirring until the onions are very soft, richly caramelized, and jammy, about 15 to 20 minutes.
- Mix the baking soda with the remaining tablespoon of water and pour it into the skillet. Stir continuously for about 1 minute, until the liquid has cooked away. Transfer the onions to a bowl and allow them to cool completely before using.
- Once cooled, finely chop the caramelized onions.
- In a medium bowl, whisk together the sour cream, Greek yogurt, Worcestershire sauce, white vinegar, salt, and a few grinds of black pepper until smooth. Fold in the chopped onions, chives, and parsley until evenly combined.
- Cover the dip and refrigerate for at least 1 hour before serving so the flavors have time to blend. Give it a final stir, then taste and adjust the seasoning with additional salt, pepper, vinegar, or Worcestershire sauce if needed.
Tips
Erren’s Top Tips
- Slice the onions evenly so they cook at the same rate.
- Don’t rush the caramelization—deep golden onions create the best flavor.
- Stir often once browning begins to prevent scorching.
- Make the dip a day ahead if possible. It tastes even better after resting overnight.
- Taste before serving and adjust the salt, vinegar, or Worcestershire sauce as needed.
Variations & Add-Ins
- Add finely crumbled crispy bacon.
- Stir in grated Parmesan for extra savory flavor.
- Mix in roasted garlic for another layer of sweetness.
- Add a pinch of cayenne for gentle heat.
- Sprinkle with extra chives before serving for a fresh finish.
Storage & Freezing
Storage: Store covered in the refrigerator for up to 4 days. Stir well before serving. Freezing: Freezing isn’t recommended, as dairy-based dips can separate once thawed. Make Ahead: Prepare up to 2 days in advance for even better flavor.
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FAQs
Why add baking soda to the onions?
A tiny amount of baking soda raises the onions’ pH, helping them brown and caramelize more quickly while becoming extra soft and jammy.
Can I make caramelized onion dip ahead?
Absolutely. In fact, it’s even better after several hours—or overnight—as the flavors have time to meld together.
Can I use sweet onions?
Yes. Sweet onions create a slightly sweeter dip, while yellow onions offer the best balance of sweet and savory.
Why use Greek yogurt?
Greek yogurt lightens the dip slightly while adding a pleasant tang that complements the sweet onions.
What should I serve with caramelized onion dip?
Potato chips are the classic choice, but it’s also delicious with crackers, toasted baguette slices, pretzels, or fresh vegetables like carrots, celery, cucumbers, and bell peppers.
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