Description
This Creamy Baked Caramelized Onion Dip is a rich and cheesy appetizer bursting with sweet, golden caramelized onions. Perfect for parties, game day, or cozy gatherings, this dip pairs wonderfully with crackers, bread, or fresh vegetables. Make it ahead and bake just before serving for effortless entertaining.
Ingredients
Onion Mixture
- 2 tablespoons olive oil
- 2 large yellow onions, finely chopped
- 1 medium shallot, thinly sliced
- 3/4 teaspoon salt
- 1/4 teaspoon black pepper
- 1 teaspoon granulated sugar
- 3 garlic cloves, minced
- Pinch crushed red pepper flakes (optional)
Creamy Base
- 3/4 cup full-fat Greek yogurt or sour cream
- 2/3 cup mayonnaise
- 3/4 cup finely grated hard Italian-style cheese
- 6 ounces shredded mozzarella cheese
Instructions
- Preheat Oven: Preheat the oven to 375°F. Lightly grease a small to medium baking dish and set aside.
- Caramelize Onions and Shallots: Warm the olive oil in a large skillet over medium heat. Add the onions and shallot, then season with salt, pepper, and sugar. Cook slowly for about 20–25 minutes, stirring occasionally, until the onions are deeply golden, soft, and sweet.
- Add Garlic and Spices: Stir in the garlic and red pepper flakes, if using, and cook for about 1 minute until fragrant. Remove the skillet from heat.
- Mix Creamy Ingredients: In a medium bowl, combine the Greek yogurt or sour cream, mayonnaise, grated hard Italian-style cheese, and shredded mozzarella. Stir until smooth and evenly mixed.
- Combine Onion Mixture and Cream Base: Fold the warm onion mixture into the creamy cheese base until fully incorporated.
- Transfer to Baking Dish: Spoon the mixture into the prepared baking dish and spread it evenly.
- Bake: Bake uncovered for 22–25 minutes, or until the dip is hot, bubbly, and lightly golden on top. For extra color, broil briefly at the end if desired.
- Rest and Serve: Let the dip rest for about 5 minutes before serving. Enjoy warm with crackers, toasted bread, or fresh vegetables.
Notes
- You can make this dip up to one day ahead and refrigerate before baking.
- Leftovers can be stored in an airtight container in the fridge for up to 3 days.
- Reheat leftovers in the oven or microwave until warmed through.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Appetizers
- Method: Baking
- Cuisine: American
