If there’s one thing I’ll never show up to a party without, it’s a homemade dip situation. And this Roasted Onion Dip is the MVP of my appetizers. We’re talking deeply caramelized onions, a little tang, a little creaminess, and that perfect salty bite that keeps everyone hovering over the bowl until it’s gone. It’s cozy, it’s addictive, and it’s exactly the kind of make-ahead magic that makes entertaining feel effortless.
If you are building out a whole appetizer spread, let this live right next to The Best Hummus and Herbed Baked Pita Chips, Homemade Pimento Cheese Dip, and Cheesy Artichoke Dip. Then go all in on a board moment with The Ultimate Appetizer Board or How To Make The Ultimate Cheese Plate. Throw this Roasted Onion Dip right in the center and watch it disappear.
Trust me… once you make this Roasted Onion Dip, you’ll wonder why you ever bought the store-bought stuff in the first place. Let’s get into it.
Roasted Onion Dip at a Glance
- 🕒 Total Time: 1 hour 15 minutes
- 👪 Servings: 10
- 🍝 Cuisine Type: American / Appetizer
- 🧂 Flavor Profile: Deeply caramelized onions and shallots with herbs, sour cream and Greek yogurt for creaminess, bright acidic note from white wine and champagne vinegar
- 📖 Dietary Info: Vegetarian; gluten-free (when served with gluten-free chips)
- 📦 Storage Notes: Refrigerate in an airtight container for 3–4 days; not recommended to freeze once dairy is involved
- ⭐ Why You’ll Love It: The ultimate chip-and-dip crowd-pleaser — rich, savory, indulgent, and super easy to make with game-day flair.
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Why I Love This Recipe
Here we go team. Meet your new favorite dip - Roasted Onion Dip!
This Roasted Onion Dip is loaded with caramelized onions and shallots and herbs, plus sour cream and Greek yogurt, fresh chives and some of my favorite seasoning on earth. In one word… it’s perfect. And quite easy to whip up. And the onion / shallot mixture that is the base of this recipe is beyond. So much so that it might be a good idea to make a double batch because I found myself eating it by the spoonful before I could even get the ingredients together to make the dip.
I’m serving it up with wavy potato chips for optimum dipping. I mean, come on… does it get better than this? Doubtful.
Jump to:
Ingredients
Substitutions
🧅 Onion Swaps
- Yellow onions — classic for deep, caramelized sweetness.
- Sweet onions — make the dip extra mellow and rich.
- Red onions — add a little tang and a pop of color.
- Shallots or leeks — for a softer, more refined flavor.
- Mix and match different onions for layers of flavor!
🍶 Creamy Base Options
- Sour cream — the OG for that tangy balance.
- Greek yogurt — a lighter option with extra protein.
- Cream cheese — makes it thicker and extra indulgent.
- Mayo — adds smoothness and rounds out the flavor (great in combo with sour cream).
- Vegan option: Use your favorite dairy-free yogurt or cashew cream.
🧄 Flavor Boosters
- Roasted garlic — blends beautifully with the caramelized onions.
- A splash of Worcestershire or soy sauce — adds umami depth.
- A squeeze of lemon juice — brightens everything up.
- Chives, thyme, or parsley — for color and freshness.
- Cracked black pepper or smoked paprika — to finish.
🧀 Cheese Upgrades
- Parmesan or Gruyère — adds a salty, nutty note.
- Goat cheese or Boursin — for extra tang and creaminess.
- Shredded cheddar — if you want a heartier, dip-with-chips situation.
🥖 Serving Swaps
- Kettle chips or pita chips — the perfect crunchy pairing.
- Toasted baguette slices — for something a little fancier.
- Crudité platter — keeps things light and fresh.
- Spread it on burgers or sandwiches — because why not?
*For a full list of ingredients and instructions please see recipe card below.
How to Make Roasted Onion Dip
Step 1: Preheat oven to 425°. Mix onions, shallots, thyme sprigs, and oil in a large roasting pan. Season with salt and pepper.
Step 2: Roast onion mixture, stirring and scraping down sides of pan every 10 minutes, until mixture starts to break down and turn golden brown, 45–55 minutes.
Step 3: Discard thyme sprigs. Add wine and vinegar; stir to scrape up any browned bits from bottom of pan. Return onion mixture to oven. Continue roasting, stirring occasionally, until deep golden brown and completely caramelized, about 15 minutes longer. Spread onion mixture out on a rimmed baking sheet to cool.
Step 4: Transfer onion mixture to a work surface and finely chop. Transfer the onion mixture to a medium bowl, reserving 2 tablespoons for garnish.
Step 5: Stir in sour cream, chives, and yogurt. Season with salt, thyme and everything seasoning.
Step 6: Serve with Cape Cod Waves ™ Potato Chips.
How to Store Roasted Onion Dip
You can store this dip in the fridge for 3-4 days in an airtight container.
How to Freeze Roasted Onion Dip
I do not recommend storing this dip with the yogurt and sour cream in it, its best eaten fresh!
10 Tips + Tricks for the Best Roasted Onion Dip
Customize it for your crowd. Want smoke? Add a pinch of smoked paprika. Want richness? Stir in a little crème fraîche. Want extra onion flavor? Fold in toasted onion flakes. This dip plays well with upgrades.Roasting is completely hands-off vs caramelizing in a skillet, and tastes just as good!!
Roast those onions hard. High heat brings out the sweetness, gives you deep golden edges, and makes the whole dip taste richer. Keep stirring every so often to avoid burnt bits — we want caramelized, not crispy.
Use a mix of onions for depth. Yellow onions bring sweetness, shallots add that fancy vibe, and together they create a super layered onion flavor. Don’t skip the combo.
Deglaze like you mean it. A splash of white wine or vinegar at the end wakes everything up and pulls all the browned bits off the sheet pan. That’s where the magic is hiding.
Cool, then chop. Hot onions can melt your base and turn the dip runny. Let them cool, then finely chop so they blend in without disappearing. Perfect texture every time.
Use a two-part creamy base. Sour cream + Greek yogurt = tangy, smooth, and not too heavy. It makes the dip feel fresh instead of weighed down.
Season with intention. Salt brings out the onion sweetness. Pepper gives a tiny bite. And everything seasoning is the not-so-secret hero that adds crunch and flavor in one swoop.
Give it time to chill. Letting the dip rest in the fridge for a few hours (or overnight!) deepens the flavor and firms up the texture. This is a “gets-better-with-time” situation.
Choose chips that can handle it. Wavy, ridged, sturdy chips are your best friends here. This dip is chunky, creamy, dreamy… and needs a partner that won’t crumble under pressure.
Add a crunchy garnish before serving. Reserved onions, extra chives, or even crispy shallots on top give every bite the perfect contrast. Texture heaven.
FAQs
I'm creating a dip trio, what other dips can I make with this onion dip?
Yum! Add the pimento cheese dip and and my smoked salmon dip. However, there are a whole lot of other options. Also be sure to check out my Dip Party 101 guide.
Similar Recipes
If you tried this recipe, please leave a 🌟 star rating and let me know how it goes in the 📝 comments below. Thanks for visiting today
Roasted Onion Dip
Ingredients
- 2 pounds large yellow onions thinly sliced
- 3 large shallots thinly sliced
- 4 sprigs thyme
- ¼ cup olive oil
- Kosher salt and freshly ground black pepper
- 1 cup white wine
- 2 tablespoons champagne vinegar
- 2 cups sour cream
- ½ cup chopped fresh chives
- ¼ cup plain Greek yogurt
- Everything seasoning and thyme to garnish
- Potato Chips for serving
Instructions
- Preheat the oven to 425°F. In a large roasting pan, toss the onions, shallots, thyme sprigs, and olive oil. Season with salt and pepper.
- Roast, stirring and scraping down the pan every 10 minutes, until softened and golden brown, 50–60 minutes, continue with 10 minute increments if they aren’t yet golden.
- Discard the thyme sprigs. Add the wine and vinegar, scraping up any browned bits from the pan. Return to the oven and roast for another 15 minutes, until deeply caramelized. Spread onto a baking sheet to cool.
- Finely chop the cooled onion mixture, reserving 2 tablespoons for garnish.
- In a medium bowl, mix the onions with sour cream, chives, and yogurt. Season with salt to taste. Transfer to a serving bowl, top with the reserved onions, thyme, and everything seasoning. Serve with potato chips.
Notes
- Roast those onions hard. High heat brings out the sweetness, gives you deep golden edges, and makes the whole dip taste richer. Keep stirring every so often to avoid burnt bits — we want caramelized, not crispy.
- Use a mix of onions for depth. Yellow onions bring sweetness, shallots add that fancy vibe, and together they create a super layered onion flavor. Don’t skip the combo.
- Deglaze like you mean it. A splash of white wine or vinegar at the end wakes everything up and pulls all the browned bits off the sheet pan. That’s where the magic is hiding.
- Cool, then chop. Hot onions can melt your base and turn the dip runny. Let them cool, then finely chop so they blend in without disappearing. Perfect texture every time.
- Use a two-part creamy base. Sour cream + Greek yogurt = tangy, smooth, and not too heavy. It makes the dip feel fresh instead of weighed down.
- Season with intention. Salt brings out the onion sweetness. Pepper gives a tiny bite. And everything seasoning is the not-so-secret hero that adds crunch and flavor in one swoop.
- Give it time to chill. Letting the dip rest in the fridge for a few hours (or overnight!) deepens the flavor and firms up the texture. This is a “gets-better-with-time” situation.
- Choose chips that can handle it. Wavy, ridged, sturdy chips are your best friends here. This dip is chunky, creamy, dreamy… and needs a partner that won’t crumble under pressure.
- Add a crunchy garnish before serving. Reserved onions, extra chives, or even crispy shallots on top give every bite the perfect contrast. Texture heaven.
- Customize it for your crowd. Want smoke? Add a pinch of smoked paprika. Want richness? Stir in a little crème fraîche. Want extra onion flavor? Fold in toasted onion flakes. This dip plays well with upgrades.
Nutrition Information
Photo by Matt Armendariz / Food Styling by Adam Pearson / Recipe from What’s Gaby Cooking
This is the perfect game day dip!
Made this for game day today and it is the best onion dip I’ve ever had!
Freezable?
Btw-delish, Just extra that I don’t want to go to waste!
Best dip I’ve ever had. Seriously delicious!!!
How long will this stay fresh in the fridge?
3-4 days
What kind of White Wine do you suggest or did you use?
a sauv blanc!
I can't find champagne vinegar. Is it OK to use white wine vinegar? or should I use something else?
totally will work
This is my go to super bowl recipe! So good!
I made this tonight with vegan sour cream and vegan yogurt - hubby said it’s the best vegan dip he’s tried. Thanks!
Made this for the big game day. My tasting(s) give this dip a big thumbs up! Next time, I would lover the temperature for the onions by at least 25 degrees to prevent scorching. I left out the "everything" seasoning and kept it to just salt and pepper so the flavor of the onions really gets top billing. This is a keeper.
Would it be as good if I caramelized everything on the stove top over low heat w/occasional stirring?
sure!
What is everything seasoning!?
https://www.williams-sonoma.com/products/gaby-dalkins-everything-bagel-seasoning/
Can this be made without the wine?
yes - use stock!
hi gaby..
would this dip be okay to make the day before?
1000%