Caramelized Onion Dip

User Reviews

5

617 reviews
Excellent

Caramelized Onion Dip

This Caramelized Onion Dip features slowly cooked sweet onions browned in butter to develop rich, sweet flavor and tender texture. Mixed into a creamy base of sour cream, mayonnaise, and garlic powder, it yields a tangy, smooth dip with notes of caramelized onion and subtle herbs. The recipe involves careful, low-heat cooking with frequent stirring to prevent burning and achieve deep caramelization, perfect for gatherings or as a flavorful snack accompaniment.

Description

The dip starts by slowly caramelizing chopped sweet onions in butter over low to medium-low heat with salt and pepper. The onions soften and deepen in color over 30 to 60 minutes, stirred frequently to avoid burning, with water added to keep moisture as needed. Once caramelized, they are cooled slightly before combining into a thick, creamy mixture of sour cream, mayonnaise, and garlic powder.

This dip balances the natural sweetness and richness of the caramelized onions with the tanginess of the sour cream and mayonnaise. Fresh parsley sprinkled on top adds a hint of freshness. The careful cooking process transforms simple ingredients into a textured dip suitable for serving with chips, crackers, or vegetables.

Caramelized onions can be prepared a day or two in advance and refrigerated, reheated gently before mixing to maintain flavor and consistency. Low heat and frequent stirring are key to developing the desired deep flavor and preventing burning during the onion cooking stage.

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Ingredients

  • 4 tablespoons butter unsalted
  • 4 onion chopped, sweet
  • salt at least 1/2 teaspoon of each, probably more, kosher salt
  • black pepper at least 1/2 teaspoon of each, probably more, kosher salt
  • 1 cup sour cream or plain Greek yogurt
  • ½ cup mayonnaise
  • ½ teaspoon garlic powder
  • herbs like parsley, for topping, fresh

Instructions

  1. Heat the butter in a large skillet or pot over medium heat. Once melted, stir in the onions with a big pinch of salt and pepper. Cook for 5 minutes, just until the onions begin to soften. Turn the heat down to low (or medium-low, if low isn’t cooking them), and cook, stirring often, until the onions are dark brown and caramely, anywhere from 30 to 60 minutes, depending on how much you want to babysit them. This will take a while, but the onions are in smaller pieces, so are also more apt to burn. Keep an eye on them and stir often, reducing the heat when needed. Add a splash of water to the pan if it gets dry at any time.
  2. Let the onions cool slightly before adding them to the dip. Alternately, you can also caramelize the onions a day or two ahead of time! I will caramelize them and store them in a container in the fridge. I do reheat them on low heat (either in a pan or microwave) just to warm the solids up a bit.
  3. Whisk together the sour cream, mayo, garlic powder and a big pinch of salt and pepper. Once the onions are caramelized, stir them in. Continue to stir until everything is combined - it will come together. Taste the dip and if you need more salt, add it in.
  4. This stays great in the fridge if you make it ahead of time - it will thicken up a bit. It is also great served immediately. Serve with chips, crackers, pretzels, veggies - anything!
  5. This stays great in the fridge for a few days! It will thicken up a bit, but will slightly loosen up once it gets back to room temperature.
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617 reviews
Excellent

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