Ingredients
Scale
- 3 large yellow onions, thinly sliced
- 2 tablespoons unsalted butter
- 8 ounces cream cheese, softened
- 1 cup sour cream
- 1 1/2 cups Gruyère cheese, shredded and divided
- 1 teaspoon Worcestershire sauce
- 1/2 teaspoon kosher salt
- 1/4 teaspoon black pepper
Instructions
- Step 1: Caramelize the Onions. In a large skillet, melt the butter over medium-low heat. Add the sliced onions and a pinch of salt. Cook, stirring occasionally, for 30–45 minutes until the onions are deeply browned and caramelized. Remove from heat and let cool slightly.
- Step 2: Prepare the Dip Base. Preheat your oven to 375°F (190°C). In a large mixing bowl, combine the softened cream cheese, sour cream, Worcestershire sauce, kosher salt, and black pepper until smooth.
- Step 3: Combine Ingredients. Gently fold the cooled caramelized onions and 1 cup of the shredded Gruyère cheese into the cream cheese mixture until evenly distributed.
- Step 4: Bake the Dip. Transfer the mixture to a 1-quart baking dish. Sprinkle the remaining 1/2 cup of Gruyère cheese over the top of the dip.
- Step 5: Finish and Serve. Bake for 20–25 minutes, or until the dip is bubbly around the edges and the top cheese is melted and golden brown. Let cool for 5 minutes before serving with crostini, chips, or vegetables.
Notes
- The key to superb flavor lies in patience; resist the urge to rush the onions, as a full 30-45 minutes of slow cooking ensures deep, defined caramelization.
- To prep this dip in advance, assemble the mixture (Step 3) and refrigerate for up to three days before baking; allow 5-10 extra minutes in the oven if baking directly from cold.
- For a delicious textural contrast, serve this warm dip alongside sturdy dipping vehicles like toasted baguette slices (crostini) or thick-cut kettle chips.
- If reheating leftovers, cover the dish with foil and warm gently at 300°F (150°C), or add a tiny splash of milk before microwaving to ensure the creamy base stays smooth and doesn't dry out.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Method: Stovetop
- Cuisine: American