This recipe was originally published in October 2018 and has been updated.
Caramelized Onion Dip is a must-make for any party or game day spread. With sweet caramelized onions, this is the best onion dip and is always a crowd favorite.
This caramelized onion dip is an all-time favorite in our house. Cooking the onions low and slow brings out their sweetness and adds so much flavor to the sour cream and mayo base.
Onion dip is a perfect make-ahead recipe, as the flavors only get better when chilled for several hours or overnight.
With ingredients that are likely in your pantry or fridge, it's easy to whip up this dip anytime.
- Yellow onions are cooked low and slow until deliciously caramelized.
- Seasonings include garlic powder, cayenne, white pepper, and salt.
How to caramelize onions
Caramelizing onions is all about cooking the onions low and slow. This slow cooking process brings out their sweetness and turns them golden brown. Caramelized onions are delicious added to so many dishes like casseroles, sandwiches, burgers, or pizza.
Carmelizing onions is very easy - it just requires a little patience.
- Preheat a skillet over medium heat. Add the butter and oil.
- Cut the onions into medium or large dice.
- Add the onions to the skillet and once they start to soften, turn the heat down to medium-low. The low temperature helps prevent the onions from drying out. If the onions do start to dry out, turn the heat down or add a splash of water or beef broth.
- Continue cooking, stirring occasionally until the onions turn golden brown, approx. 20-25 minutes.
- A touch of sugar can be added to help speed up the caramelization process, if necessary.
While the onions are caramelizing, the other ingredients can be mixed together. Combine the sour cream, mayo, and seasonings. Stir in the caramelized onions after they have cooled slightly.
This dip can be served immediately or refrigerated for several hours or overnight to allow the flavors to blend.
This onion dip is a perfect make-ahead recipe and keeps well in the refrigerator for up to four days.
How to serve
Potato chips are my favorite dipper to serve with this onion dip. For something a little lighter, fresh veggies are a great option too.
Skillet | Mixing bowl | Measuring cups and spoons
More dip recipes
- Roasted Garlic and Chive Dip
- Hot Corn Dip
- Favorite Taco Dip
- Bacon Horseradish Dip
- Chocolate Chip Mascarpone Dip
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Caramelized Onion Dip
- 2 medium yellow onions (or 1 large onion, diced)
- 1 tablespoon unsalted butter
- 2 teaspoons grapeseed oil (or olive oil)
- 1 ½ cups sour cream
- ½ cup mayonnaise
- 1 tablespoon Worcestershire sauce
- ¼ teaspoon garlic powder
- ¼ teaspoon white pepper
- ⅛ teaspoon salt
- pinch of cayenne pepper
- Heat a skillet over medium heat with the butter and oil.
- Add the onions to the skillet. Cook the onions until they have softened, about 5 minutes.
- Turn down the heat to medium-low. Continue to cook, stirring occasionally, until the onions have turned a deep brown color, approx. 20-30 minutes. If the onions start to dry out, turn down the heat or add a splash of water or beef broth. Also, a pinch or two of sugar can be added to assist with the caramelization if desired.
- Let the onions cool slightly.
- Meanwhile, in a mixing bowl, combine the sour cream, mayonnaise, and seasonings. Stir in the cooled onions.
- Serve immediately or refrigerate several hours or overnight. Store the dip covered in the refrigerator for up to four days.
Nutritional information is an estimate and will vary depending upon the exact amounts and specific ingredients used.
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