Caramelized Onion and Gruyere Dip

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There’s something undeniably comforting about a hot, creamy, bubbling dip fresh from the oven. This Caramelized Onion and Gruyere Dip takes that coziness and dials it up with the nutty richness of Gruyere cheese and deeply sweet, golden caramelized onions. It’s indulgent without being heavy, elegant yet incredibly easy to throw together.

Whether you’re planning a party, prepping for game day, or simply craving a late-night snack that feels a little extra, this dip delivers. Served with warm crostini, crackers, or even crisp veggies, it’s a showstopper that vanishes in minutes.

Why You’ll Love This Caramelized Onion and Gruyere Dip

• Deeply flavorful thanks to the slow caramelization of onions
• Creamy, cheesy texture with layers of Gruyere and cream cheese
• Perfect for make-ahead entertaining
• A warm, oven-baked dip that feels gourmet with minimal effort
• Crowd-pleasing appetizer for every season

What Kind of Gruyere Should I Use?

Opt for a good-quality aged Gruyere if possible. It melts beautifully, offering a nutty depth that perfectly complements the sweetness of caramelized onions. If Gruyere is hard to find, Swiss cheese is an acceptable substitute, though slightly milder in flavor.

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Ingredients for the Caramelized Onion and Gruyere Dip

Yellow onions – The star of the show, yellow onions caramelize into sweet, jammy perfection that sets the flavor foundation for the dip.

Butter – Essential for slowly cooking down the onions and infusing them with rich flavor.

Cream cheese – Brings the creamy body to the dip, offering a smooth, spreadable base.

Sour cream – Adds a touch of tang to balance the sweetness of the onions.

Mayonnaise – Gives an extra creamy, slightly rich layer that rounds out the flavor.

Gruyere cheese – Nutty, melty, and luxurious – it’s the perfect match for caramelized onions.

Garlic – Just a bit to deepen the savory notes.

Fresh thyme – Adds a gentle, herby brightness that balances the richness.

Salt and black pepper – Essential for seasoning and highlighting every flavor.

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How To Make the Caramelized Onion and Gruyere Dip

Step 1: Caramelize the Onions

Thinly slice 3 large yellow onions. In a skillet over medium-low heat, melt 3 tablespoons of butter and add the onions. Cook slowly, stirring often, for about 30-40 minutes until golden and caramelized. Add 1 clove of minced garlic in the last few minutes and cook until fragrant.

Step 2: Make the Creamy Base

In a large bowl, mix 8 ounces of softened cream cheese, 1/2 cup of sour cream, and 1/4 cup of mayonnaise until smooth.

Step 3: Fold in the Flavor

Stir in the caramelized onions (reserving 1/4 cup for topping), 1 1/2 cups shredded Gruyere cheese, 1 teaspoon of fresh thyme, and season with salt and pepper to taste.

Step 4: Bake Until Golden

Transfer the mixture to a greased baking dish. Top with the reserved onions and an extra sprinkle of Gruyere (about 1/4 cup). Bake at 375°F (190°C) for 20-25 minutes until hot and bubbly with a golden top.

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The Best Ways to Serve This Dip

This dip makes 8 servings, ideal as a shared appetizer. Serve it straight from the oven with toasted baguette slices, crackers, pita chips, or even veggie sticks like carrots and celery. It’s perfect for game nights, holiday gatherings, or cozy weekends.

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How To Store Leftover Caramelized Onion and Gruyere Dip

Cool the dip completely before transferring it to an airtight container. Refrigerate for up to 4 days. To reheat, warm it in the oven at 350°F until hot and bubbly, or microwave individual portions in 30-second bursts. This dip is not ideal for freezing due to its dairy base, which may separate.

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Frequently Asked Questions

Can I make this dip ahead of time?
Absolutely! You can assemble the entire dip up to 2 days in advance. Just cover tightly and refrigerate. Bake it just before serving.

What if I don’t have Gruyere cheese?
Use Swiss or even sharp white cheddar for a similar melty texture and flavor. Just note that Gruyere offers a slightly nuttier depth.

Is this dip gluten-free?
The dip itself is gluten-free, but make sure to serve it with gluten-free dippers if needed.

Can I double the recipe?
Yes! This recipe doubles beautifully for larger gatherings. Use a 9×13 dish and add about 5 extra minutes to the baking time.

Can I add bacon or other mix-ins?
Definitely. Crumbled bacon, roasted garlic, or even chopped spinach make fantastic additions.

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Want More Dip Ideas?

If you love this Caramelized Onion and Gruyere Dip, check out some of our most craveable dips:

• Three Cheese Tomato Bruschetta Dip with melty cheese and roasted tomato flavor.
• Cowboy Cream Cheese that brings creamy spice and bold flavor.
• Stuffed Mushroom Casserole that tastes like the appetizer platter of dreams.
• Creamy Corn Casserole if you’re looking for that sweet-savory balance.

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📌 Save this recipe to your Pinterest appetizer board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you try adding bacon? Or maybe a splash of balsamic? I love seeing how you make these dips your own.

For more delicious recipes like this one, follow me on Pinterest @MadForMeals where I share daily ideas!

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