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Caramelized French Onion Dip

This Caramelized French Onion Dip will quickly become a staple for all your get-togethers! Sweet onions are cooked low and slow until they are thoroughly caramelized. Then, they’re mixed into a creamy sour cream and mayonnaise base. Add in some parsley and chives, and you have an amazing dip that everyone will love!

Bowl of French onion dip with chips

Store-bought French onion dip is bland compared to this flavor-packed dip. Sure, it’s convenient, but you’re missing out on so much flavor. Homemade French Onion Dip, however, packs a ton of flavor that makes the extra work completely worth it. Trust me, once you’ve had this dip, you’ll never want to go back to the store-bought stuff.

Caramelizing the Onions

The onions are the star of the show here so we want to treat them as such. That means cooking them over low heat for a long time, typically around an hour, until they become completely caramelized.

Bowl of deeply caramelized onions

Caramelizing onions is the process of cooking them until the sugars break down, causing them to become incredibly sweet and flavorful.

How to Make Caramelized French Onion Dip

*Note: This dip is best made the day before you want to serve it. The flavors will meld and become more intense after spending 24 hours in the fridge together. Thankfully, that makes things easier for you if you’re making this for a party.

Finely dice the sweet onions.

Chopped onions

In a large wide-bottomed pan, melt the butter over medium heat.

Sauté the onions over medium heat for 5 minutes, then lower the heat to medium-low. Continue cooking, stirring occasionally, until the onions become dark brown. This process typically takes about an hour but can take longer so be patient with them.

When there are about 10 minutes of cooking left, add the finely minced garlic to the onions.

Once fully caramelized, remove the onions from the pan and allow them to cool for about 20 minutes.

Bowl of ingredients for French onion dip

In a bowl, mix together the sour cream, mayonnaise, onions, chives, parsley, salt, and pepper.

Refrigerate for at least 2 hours, but ideally overnight.

Bowl of French onion dip with chips

Tips for Making Caramelized French Onion Dip

  • Take your time with the onions. It can be tempting to crank up the heat in an attempt to cook the onions quickly but you simply won’t get the same depth of flavor. Your patience will be rewarded!
  • You can use dried herbs for this recipe, but I recommend rehydrating them before putting them into the dip. To do this, simply put them in a bowl and cover them with water. Allow the herbs to sit in the water for about 10 minutes and then drain them well.
  • Low- and reduced-fat sour cream and mayo will work in this recipe but you’ll sacrifice some of the flavor.

More Appetizers You’ll Love!

Soft Pretzel Bites with Champagne Honey Mustard Dip

Ham and Cheese Puff Pastry Twists

Mexican Street Corn Salad (Esquites)

Creamy Queso Blanco Dip

Pepper Beef Nachos with Homemade Queso

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Bowl of french onion dip next to chips

Homemade Caramelized French Onion Dip

Alicia S.
Caramelized sweet onions, fresh herbs, and creamy sour cream and mayo come together to make a dip that everyone will love!
5 from 2 votes
Prep Time 10 minutes
Cook Time 1 hour
Chill Time 2 hours
Total Time 3 hours 10 minutes
Course Appetizers
Servings 6 people


  • 2 tablespoons salted butter
  • 2 large sweet onions finely diced
  • 2 cloves garlic finely minced
  • 1 1/2 cups sour cream
  • 1/2 cup mayo
  • 2 tablespoons parsley finely chopped
  • 2 tablespoons chives thinly sliced
  • 1/2 teaspoon salt
  • 1/4 teaspoon pepper


  • In a large pan, melt the butter over medium heat. Add the onions and sauté for 5 minutes then reduce the heat to medium-low. Continue to cook, stirring occasionally, until the onions are fully caramelized, about 1 hour.
  • When there are about 10 minutes of cook time left, add the minced garlic to the onions.
  • Remove the onions from the pan and allow to cool for 20 minutes.
  • In a bowl, stir together the sour cream, mayo, onions, parsley, chives, salt, and pepper until well combined.
  • Refrigerate for at least 2 hours, but ideally overnight.


Serving: 1gCalories: 291kcalCarbohydrates: 6gProtein: 2gFat: 29gSaturated Fat: 11gPolyunsaturated Fat: 9gMonounsaturated Fat: 7gTrans Fat: 1gCholesterol: 48mgSodium: 397mgPotassium: 165mgFiber: 1gSugar: 5gVitamin A: 644IUVitamin C: 6mgCalcium: 82mgIron: 1mg
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