This caramelized onion dip is a delightful twist on the traditional recipe, offering a rich and savory flavor that will elevate any gathering. The slow-cooked onions bring out a natural sweetness that pairs perfectly with the creamy base, making it an irresistible addition to your appetizer spread.
Most of the ingredients for this recipe are common pantry staples, but you might need to ensure you have sour cream and mayonnaise on hand. These two ingredients form the creamy base of the dip and are essential for achieving the right texture and flavor. If you don't usually stock garlic powder, it's worth picking up a small jar as it adds a subtle yet important depth to the dip.

Ingredients for Caramelized Onion Dip
Olive oil: Used for cooking the onions until they are perfectly caramelized.
Onions: The star of the dish, providing a sweet and savory flavor once caramelized.
Sour cream: Adds a creamy texture and tangy flavor to the dip.
Mayonnaise: Enhances the creaminess and adds a slight richness to the dip.
Garlic powder: Provides a subtle garlic flavor that complements the sweetness of the onions.
Salt: Enhances all the flavors in the dip.
Black pepper: Adds a touch of heat and balances the sweetness of the onions.
Technique Tip for This Recipe
To achieve perfectly caramelized onions, patience is key. Start by heating the olive oil over medium heat and add the thinly sliced onions. Stir occasionally to ensure even cooking, but avoid stirring too frequently as this can prevent the onions from browning properly. If the onions start to stick or brown too quickly, reduce the heat slightly. The goal is to slowly draw out the natural sugars in the onions, which can take about 25-30 minutes. Once they reach a deep golden brown color, they are ready to be incorporated into the sour cream mixture.
Suggested Side Dishes
Alternative Ingredients
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a neutral flavor, making it a great alternative for sautéing onions.
olive oil - Substitute with butter: Butter adds a rich, creamy flavor to the onions, enhancing their sweetness as they caramelize.
onions - Substitute with shallots: Shallots have a milder, sweeter taste compared to onions and can add a subtle complexity to the dip.
onions - Substitute with leeks: Leeks provide a delicate, slightly sweet flavor that can be a unique twist on the traditional caramelized onion dip.
sour cream - Substitute with Greek yogurt: Greek yogurt offers a similar tangy flavor and creamy texture but with added protein and less fat.
sour cream - Substitute with creme fraiche: Creme fraiche has a rich, tangy flavor similar to sour cream but with a slightly higher fat content, making the dip even creamier.
mayonnaise - Substitute with Greek yogurt: Greek yogurt can replace mayonnaise to reduce fat content while maintaining a creamy texture.
mayonnaise - Substitute with mascarpone cheese: Mascarpone cheese adds a rich, creamy texture and a slightly sweet flavor, enhancing the dip's overall taste.
garlic powder - Substitute with fresh garlic: Fresh garlic provides a more robust and aromatic flavor compared to garlic powder.
garlic powder - Substitute with shallot powder: Shallot powder offers a milder, sweeter garlic-like flavor that can add a unique twist to the dip.
salt - Substitute with soy sauce: Soy sauce adds a savory umami flavor along with saltiness, enhancing the overall depth of the dip.
salt - Substitute with sea salt: Sea salt can provide a more nuanced flavor compared to regular table salt.
black pepper - Substitute with white pepper: White pepper has a milder flavor and can add a subtle heat without altering the dip's appearance.
black pepper - Substitute with cayenne pepper: Cayenne pepper adds a bit of heat and a different flavor profile, making the dip spicier.
Alternative Recipes Similar to This Dip
How to Store or Freeze This Dip
- To store your caramelized onion dip, transfer it to an airtight container. This will help maintain its freshness and prevent any unwanted flavors from seeping in.
- Place the container in the refrigerator. The dip will stay fresh for up to 4-5 days, making it a perfect make-ahead option for gatherings or a quick snack.
- If you plan to freeze the dip, ensure it is completely cooled before transferring it to a freezer-safe container. This will help preserve the texture and flavor of the caramelized onions.
- Label the container with the date to keep track of its storage time. The dip can be frozen for up to 2 months.
- When ready to use, thaw the dip in the refrigerator overnight. This slow thawing process will help maintain the creamy consistency of the sour cream and mayonnaise mixture.
- Before serving, give the dip a good stir to reincorporate any separated ingredients. You may also want to taste and adjust the seasoning with a pinch of salt or black pepper if needed.
- For an extra touch of freshness, consider adding a sprinkle of freshly chopped herbs like chives or parsley just before serving. This will not only enhance the flavor but also add a pop of color to your dip.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Transfer the caramelized onion dip to an oven-safe dish. Cover with aluminum foil to prevent drying out. Bake for 15-20 minutes or until heated through. Stir halfway to ensure even heating.
For a quicker option, 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 for 1-2 minutes, stirring every 30 seconds until warmed to your liking.
If you prefer stovetop reheating, transfer the dip to a small saucepan. Heat over low to medium heat, stirring frequently to prevent sticking and ensure even warming. This method takes about 5-7 minutes.
For a creamy texture, add a splash of milk or cream while reheating. This helps maintain the dip's consistency and prevents it from becoming too thick.
If you have an air fryer, preheat it to 300°F (150°C). Place the dip in an air fryer-safe dish. Heat for 5-7 minutes, stirring halfway through to ensure even heating.
Essential Tools for Making This Dip
Skillet: A wide, flat-bottomed pan used for cooking the onions evenly over medium heat.
Spatula: A tool for stirring the onions occasionally to ensure they caramelize evenly.
Mixing bowl: A large bowl to combine the sour cream, mayonnaise, garlic powder, salt, and black pepper.
Measuring spoons: Used to measure out the garlic powder, salt, and black pepper accurately.
Measuring cups: Used to measure the sour cream and mayonnaise.
Knife: For thinly slicing the onions.
Cutting board: A surface to safely slice the onions.
Refrigerator: To chill the dip for at least 1 hour before serving.
Mixing spoon: For mixing the caramelized onions into the sour cream mixture.
Time-Saving Tips for Making This Dip
Pre-slice the onions: Slice the onions ahead of time and store them in an airtight container in the refrigerator to save prep time.
Use a food processor: Use a food processor to quickly and evenly slice the onions.
Caramelize in bulk: Caramelize a large batch of onions and freeze portions for future use.
Quick chill: Spread the dip in a shallow dish to cool it faster in the refrigerator.
Pre-mix dry ingredients: Combine the garlic powder, salt, and black pepper in advance to streamline the mixing process.

Caramelized Onion Dip (Less traditional)
Ingredients
Main Ingredients
- 2 tablespoon Olive oil
- 3 large Onions, thinly sliced
- 1 cup Sour cream
- ½ cup Mayonnaise
- 1 teaspoon Garlic powder
- 1 teaspoon Salt
- ½ teaspoon Black pepper
Instructions
- Heat olive oil in a skillet over medium heat.
- Add onions and cook until caramelized, about 25-30 minutes. Stir occasionally.
- In a mixing bowl, combine sour cream, mayonnaise, garlic powder, salt, and black pepper.
- Once onions are caramelized, let them cool slightly, then mix into the sour cream mixture.
- Chill in the refrigerator for at least 1 hour before serving.
Nutritional Value
Keywords
Suggested Main Courses and Desserts for This Dip
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