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Caramelized onion and cream cheese dip

Imagine French onion soup as a dip. Thick, creamy and absolutely tasty. It takes about 12 hours to make it in the slow cooker, but there’s very little work involved. It’s patience that’s required and it will be amply rewarded.
Caramelized onion and cream cheese dip
Dip / spread+ Vegetable / fruit recipe by Connie Veneracion | Last updated: 12.02.2025
Prep: 15 minutes mins
Cook: 10 hours hrs 30 minutes mins
Total: 10 hours hrs 45 minutes mins
Servings: 2 cups
Course: Appetizer
Cuisine: Fusion
Label: Cheese dip / spread
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Connie’s notes

My husband’s work, perfected. He has made this caramelized onion and cheese dip at least three times in search of perfection. And he did it on the third attempt. Neighbors who have tried it encourage him to sell it in small tubs but he wants to make it only for family and friends.
Why use a slow cooker? It takes a long time for the onions to soften and caramelize. If you do this on the stovetop, you will need to stir the onions often to make sure they don’t scorch. Who wants to hover over the stove for an hour or longer to cook onions? Softening them in the slow cooker is the smarter choice.
Sweet mildly flavored onions are best for making this dip. In my part of the world that means large yellow onions.
Consume the dip within three to four days.
Adapted from a Betty Crocker recipe.

Ingredients

  • 1 ½ kilograms sweet yellow onion (3.3 pounds) peeled and very thinly sliced
  • 2 tablespoons butter melted
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • 1 cup cream cheese
  • ½ teaspoon soy sauce (Kikkoman is recommended)
  • ½ teaspoon Worcestershire sauce
  • ¼ cup mayonnaise Tip: Japanese mayo is tastier and firmer, and it yields better overall results
  • 1 tablespoon chopped fresh parsley leaves plus more to garnish
  • ½ teaspoon dried thyme or 1 tablespoon chopped fresh thyme
  • 2 pinches chili flakes to garnish

Instructions

  • Drizzle the melted butter in the slow cooker.
  • Add the sliced onion, toss well to coat each piece with butter, then stir in the salt and pepper.
  • Set the heat to LOW and cook the onion slices until browned, about 10 to 12 hours, stirring the onions every three hours or so.
    Caramelizing onion slices with butter in a slow cooker
  • Strain the onion slices well and return to the slow cooker.
  • Cut the cream cheese into small cubes and add to the onions.
    Stirring cream cheese into caramelized onions
  • Turn on the slow cooker again, still on LOW, and cook the onion slices with the cream cheese for about 15 minutes.
  • Turn off the slow cooker and stir the onions and cheese until blended.
  • Add the mayo and parsley and stir to combine.
    Adding mayo and parsley to cramelized onions and cream cheese
  • Stir in the thyme.
    Stirring thyme, soy sauce and Worcestershire sauce into caramelized onion and cream cheese
  • Drizzle in the soy sauce and Worcestershire sauce and stir until the coloring is even.
  • Cool the caramelized onion and cheese dip then transfer to a covered container. Chill in the fridge for a couple of hours before serving.
    Caramelized onion and cream cheese dip
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About Connie Veneracion

Home cook and writer by passion, photographer by necessity, and good food, coffee and wine lover forever. I create, test and publish recipes for family meals, and write cooking tips and food stories. More about me and my umami blogs.

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