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Warm Caramelized Onion & Gruyère Dip

Deeply caramelized onions folded into a rich Gruyère cream and baked until golden.

Warm Caramelized Onion & Gruyère Dip, shown as a serving suggestion
An illustration of the finished dish.
Serves 10–12 · Makes approximately 3½ cups Approximately 1 hour 20 minutes (15 minutes prep + 35–45 minutes caramelizing + 20 minutes baking)Buy ingredients on Amazon Make a shopping list for this
VegetarianContains dairy

Bobbie’s signature enhancement: add 1 tsp balsamic vinegar to the caramelized onions during their final minute. Serve with toasted sourdough, baguette slices, crackers or roasted potatoes. Refrigerate for 3–4 days and reheat until hot.

Ingredients

  • 3 large yellow onions, thinly sliced
  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • ½ tsp salt
  • ½ tsp brown sugar
  • 1 tsp fresh thyme
  • 2 garlic cloves, minced
  • 8 oz cream cheese, softened
  • ½ cup sour cream
  • ¼ cup mayonnaise
  • 1½ cups Gruyère cheese, shredded
  • ½ cup mozzarella cheese, shredded
  • 1 tsp Worcestershire sauce
  • ¼ tsp black pepper

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Method

  1. 1

    Heat butter and olive oil in a skillet over medium-low heat. Add onions and salt. Cook slowly for 35–45 minutes, stirring occasionally, until deeply golden and sweet. Add brown sugar during the final 5 minutes.

  2. 2

    Stir in thyme and garlic. Cook for 1 minute. Remove from heat and cool slightly.

  3. 3

    Preheat the oven to 375°F. Beat cream cheese, sour cream, mayonnaise, Worcestershire sauce and black pepper until smooth.

  4. 4

    Fold in caramelized onions, 1 cup Gruyère and mozzarella.

  5. 5

    Transfer to a greased baking dish and top with remaining ½ cup Gruyère.

  6. 6

    Bake for 20 minutes until bubbling and golden.

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Warm Caramelized Onion & Gruyère Dip is printed in Dips & Party Snacks

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From Bobbie's “Bobbie's Recipe Card 44 replacement”. Written up by Bobbie's Kitchen · Updated 26 October 2026