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Grilled French Onion Dip

Amanda Haas
Prep Time 15 mins
Cook Time 35 mins
Servings 8


  • 2 tbsp butter
  • 2 tbsp olive oil
  • 3 lbs yellow onions quartered and very thinly sliced
  • Kosher salt
  • 1 tsp fresh thyme leaves
  • Freshly ground pepper
  • 1 cup sour cream
  • 1 cup mayonnaise
  • 2 tsp lemon juice


  • When ready to cook, set temperature to High and preheat, lid closed for 15 minutes. While the grill is heating, place a large cast-iron pan on the grill grate.
  • When the grill is up to temperature, melt the butter with the olive oil in the pan. Add the onions and 2 teaspoons of salt.
  • Stir, then close the grill and cook, stirring every 5 minutes, until the onions are very soft and dark brown, about 25-30 minutes.
  • Stir in the thyme and cook for 3 more minutes. Remove from the heat, add a fresh grinding of pepper, and allow the onions to cool.
  • In a mixing bowl, combine the sour cream, mayonnaise, and lemon juice. Stir in the grilled onions.
  • Taste, adding more salt and pepper as necessary. Serve with kettle chips or your favorite veggies. Enjoy!


*Cook times will vary depending on set and ambient temperatures.
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