This French onion dip is a delightful blend of creamy and savory flavors, perfect for any gathering or as a snack. The caramelized onions add a rich depth of flavor that pairs wonderfully with the tangy sour cream and smooth mayonnaise. It's a crowd-pleaser that’s easy to make and even easier to enjoy.
While most of the ingredients for this French onion dip are common pantry staples, you might need to ensure you have enough sour cream and mayonnaise on hand, as these form the base of the dip. Additionally, make sure to pick up fresh onions if you don't already have them, as their caramelized flavor is key to the recipe.

Ingredients For French Onion Dip Recipe
Sour cream: Provides a tangy and creamy base for the dip.
Mayonnaise: Adds smoothness and richness to the dip.
Onions: When caramelized, they bring a sweet and savory depth of flavor.
Olive oil: Used to cook the onions until they are perfectly caramelized.
Salt: Enhances the overall flavor of the dip.
Freshly ground black pepper: Adds a touch of heat and complexity.
Technique Tip for Making This Dip
When caramelizing onions, patience is key. Cook them slowly over medium heat, stirring occasionally to ensure even browning. This process allows the natural sugars in the onions to develop a deep, rich flavor, which is essential for a truly delicious French onion dip. Avoid rushing the process by turning up the heat, as this can lead to burnt, bitter onions.
Suggested Side Dishes
Alternative Ingredients
sour cream - Substitute with Greek yogurt: Greek yogurt provides a similar creamy texture and tangy flavor, but with added protein and less fat.
mayonnaise - Substitute with Greek yogurt: Greek yogurt can also replace mayonnaise, offering a healthier option with a similar consistency.
finely chopped onions - Substitute with shallots: Shallots have a milder and slightly sweeter flavor, which can add a subtle complexity to the dip.
olive oil - Substitute with avocado oil: Avocado oil has a similar healthy fat profile and a neutral flavor that won't overpower the other ingredients.
salt - Substitute with soy sauce: Soy sauce can add a depth of umami flavor along with the necessary saltiness.
freshly ground black pepper - Substitute with white pepper: White pepper offers a similar spiciness but with a slightly different flavor profile that can add a unique twist to the dip.
Alternative Recipes Similar to This Dip
How to Store or Freeze This Dip
- Allow the French onion dip to cool completely before storing. This helps maintain its texture and flavor.
- Transfer the dip into an airtight container. This ensures that the sour cream and mayonnaise base stays fresh and doesn't absorb any unwanted odors from the fridge.
- Label the container with the date. This helps you keep track of how long the dip has been stored.
- Store the dip in the refrigerator for up to 4-5 days. The caramelized onions will continue to infuse their flavor into the dip, making it even more delicious over time.
- For freezing, place the dip in a freezer-safe container. Ensure there's a little space at the top to allow for expansion.
- Freeze the dip for up to 2 months. When you're ready to enjoy it, thaw the dip in the refrigerator overnight.
- Once thawed, give the dip a good stir to reincorporate any separated ingredients. The texture might change slightly, but the flavor will remain delightful.
- Avoid refreezing the dip after it has been thawed. This can affect the quality and safety of the ingredients.
- For best results, serve the dip chilled. Pair it with fresh vegetables, crackers, or chips for a delightful snack or appetizer.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Transfer the French onion dip to an oven-safe dish. Cover with aluminum foil to prevent drying out. Bake for about 15-20 minutes or until heated through.
For a quicker method, use the microwave. Place the dip in a microwave-safe bowl. Cover with a microwave-safe lid or plastic wrap, leaving a small vent. Heat on medium power in 30-second intervals, stirring in between, until the dip is warm.
If you prefer a stovetop method, transfer the dip to a saucepan. Heat over low to medium heat, stirring frequently to ensure even warming. This method helps maintain the creamy texture of the sour cream and mayonnaise mixture.
For an added twist, you can reheat the dip in a slow cooker. Set it to low and let it warm up for about 1-2 hours, stirring occasionally. This method is perfect for keeping the dip warm during a party or gathering.
If you have an air fryer, preheat it to 300°F (150°C). Place the dip in an air fryer-safe dish and heat for about 10 minutes, stirring halfway through. This method gives a slightly crispy top layer while keeping the inside creamy.
Essential Tools for Making This Dip
Skillet: A flat-bottomed pan used for cooking the onions until they are caramelized.
Spatula: A tool used to stir and flip the onions while they cook in the skillet.
Mixing bowl: A large bowl where you will combine the sour cream, mayonnaise, caramelized onions, salt, and pepper.
Measuring cups: Used to measure out the sour cream and mayonnaise accurately.
Measuring spoons: Used to measure the olive oil, salt, and pepper.
Chef's knife: A sharp knife used to finely chop the onions.
Cutting board: A surface on which to chop the onions.
Refrigerator: Used to chill the dip for at least 1 hour before serving.
Mixing spoon: Used to mix all the ingredients together in the mixing bowl.
Time-Saving Tips for Making This Dip
Pre-caramelize onions: Cook and store caramelized onions in advance. They keep well in the fridge for up to a week.
Use a food processor: Quickly chop onions using a food processor to save time on prep.
Mix in bulk: Double or triple the sour cream and mayonnaise mixture and store it. Add caramelized onions as needed.
Quick chill: Spread the dip thinly in a shallow dish to cool it faster in the fridge.
Pre-measure ingredients: Measure out salt and pepper beforehand to streamline the mixing process.
French Onion Dip Recipe
Ingredients
Main Ingredients
- 2 cups Sour Cream
- 1 cup Mayonnaise
- 2 large Onions finely chopped
- 2 tablespoon Olive Oil
- 1 teaspoon Salt
- ½ teaspoon Black Pepper freshly ground
Instructions
- Heat olive oil in a skillet over medium heat.
- Add chopped onions and cook until caramelized, about 15-20 minutes.
- In a mixing bowl, combine sour cream, mayonnaise, caramelized onions, salt, and pepper.
- Mix well and refrigerate for at least 1 hour before serving.
Nutritional Value
Keywords
Suggested Main Courses and Desserts
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