Golden, bubbling, and impossibly gooey — the Jammy Hot Caramelized Onion Dip is an instant showstopper. It hits all the right notes of creamy, savory, and sweet, thanks to deeply caramelized onions nestled in a rich blend of melty cheeses and a hint of tang. Perfect for parties, cozy nights in, or any time you want to dip into something indulgent, this recipe transforms humble ingredients into a dip that’s greater than the sum of its parts.

The magic lies in the slow-cooked onions that become jammy and golden, offering a natural sweetness that pairs beautifully with the savory depth of cheese and a hint of umami. Whether served with crusty bread, crispy chips, or veggie sticks, this hot dip comes out of the oven bubbly and golden brown, drawing everyone in with its irresistible aroma.

Ingredients for Jammy Hot Caramelized Onion Dip

2 large yellow onions, thinly sliced
2 tablespoons butter
1 tablespoon olive oil
1 teaspoon sugar (optional, to aid caramelization)
1/2 teaspoon salt
1/4 teaspoon freshly ground black pepper
1/2 teaspoon garlic powder
1/2 teaspoon thyme leaves (fresh or dried)
4 oz cream cheese, softened
1/2 cup sour cream
1/2 cup mayonnaise
1 cup shredded mozzarella cheese
1/2 cup grated Parmesan cheese
1 teaspoon Worcestershire sauce
1/2 teaspoon Dijon mustard
Optional garnish: chopped chives or green onions
To serve: toasted baguette slices, crackers, or chips

Step 1: Caramelize the Onions

In a large skillet, melt the butter with the olive oil over medium heat. Add the sliced onions and stir to coat. Sprinkle in the salt, sugar (if using), and black pepper. Cook the onions slowly, stirring frequently, for 30–40 minutes. They should turn deep golden brown and become soft and jammy — not burned. Stir in the thyme and garlic powder during the last 5 minutes of cooking.

Step 2: Preheat and Prepare the Oven

Preheat your oven to 375°F (190°C). Lightly grease a small baking dish (around 8×8 inches or similar size) to ensure the dip doesn’t stick.

Step 3: Mix the Base

In a large mixing bowl, combine the cream cheese, sour cream, and mayonnaise. Beat until smooth. Stir in the Worcestershire sauce and Dijon mustard. Fold in the shredded mozzarella and grated Parmesan until well mixed.

Step 4: Combine and Transfer

Once the onions are caramelized and cooled slightly, stir them into the cheese mixture. Be sure to fold gently to keep the texture luscious. Pour the mixture into the prepared baking dish and spread it evenly.

Step 5: Bake to Golden Perfection

Place the dish in the preheated oven and bake for 20–25 minutes, or until the dip is hot and bubbly with a golden-brown top. If you want a darker crust, switch to broil for the final 1–2 minutes — watch closely to avoid burning.

Step 6: Garnish and Serve

Remove from the oven and let cool for 5 minutes. Garnish with chopped chives or green onions for a pop of color and freshness. Serve warm with slices of toasted baguette, crackers, or thick chips.

Estimated Nutrition

Per serving (based on 8 servings):

Calories: 260
Fat: 22g
Saturated Fat: 10g
Carbohydrates: 8g
Sugar: 4g
Protein: 7g
Fiber: 1g
Sodium: 430mg

Note: Nutritional values are approximate and will vary based on exact ingredients and portion sizes.

Frequently Asked Questions

1. Can I make this dip ahead of time?

Yes! Prepare the dip up to a day in advance, store it in the refrigerator, and bake it when you’re ready to serve.

2. What cheeses work best for this dip?

Mozzarella gives great stretch, while Parmesan adds a salty bite. Feel free to experiment with Gruyère or fontina for extra richness.

3. Can I caramelize the onions faster?

While higher heat speeds things up, true caramelization requires patience. Low and slow brings out the deep sweetness.

4. Is this dip vegetarian?

Yes, as long as you use a vegetarian Worcestershire sauce or omit it altogether.

5. Can I make this dip gluten-free?

The dip itself is gluten-free. Just be sure to serve it with gluten-free dippers like rice crackers or veggie sticks.

6. What can I use instead of sour cream?

Greek yogurt is a great substitute for a tangy and slightly lighter option.

7. How do I prevent the top from burning?

If broiling, keep a close eye and don’t go over 1–2 minutes. You can also cover loosely with foil partway through baking.

8. Can I add bacon or other mix-ins?

Absolutely! Crumbled cooked bacon, sautéed mushrooms, or even jalapeños can add extra depth and personality.