French Onion Dip
A classic party favorite, this homemade dip features sweet, deeply caramelized onions folded into a rich and creamy base. Far superior to any store-bought version, it's savory, complex, and incredibly addictive. Perfect with ruffled potato chips or fresh veggies for any gathering. Plan ahead, as the flavors meld and deepen overnight.
For 8 servings
4 steps. 40 minutes total.
- 1
Step 1
- a.Caramelize the Onions
- b.Place a large, heavy-bottomed skillet over medium-low heat. Add the butter and olive oil.
- c.Once the butter is melted, add the thinly sliced onions, 1/2 tsp of kosher salt, and the sugar. Stir to coat everything evenly.
- d.Cook slowly for 30-40 minutes, stirring every 5-7 minutes. The onions should gradually soften, turn translucent, and then slowly transform into a deep, jammy, golden-brown color. Adjust heat as needed to prevent burning.
- e.If brown bits (fond) stick to the bottom of the pan, deglaze with a tablespoon of water, scraping the bits up and incorporating them back into the onions.
- f.In the last 2 minutes of cooking, stir in the Worcestershire sauce until it's fully absorbed.
- g.Remove the skillet from the heat and spread the onions on a plate to cool completely to room temperature. This step is crucial before mixing with the dairy.
- 2
Step 2
- a.Prepare the Creamy Base
- b.While the onions cool, combine the sour cream, mayonnaise, garlic powder, the remaining 1/2 tsp of kosher salt, and black pepper in a medium bowl.
- c.Whisk until the mixture is smooth and well-combined.
- 3
Step 3
- a.Combine and Chill
- b.Once the caramelized onions are completely cool, finely chop them.
- c.Fold the chopped caramelized onions into the sour cream mixture until evenly distributed.
- d.Cover the bowl with plastic wrap and refrigerate for at least 2 hours to allow the flavors to meld. For the best, most intense flavor, chill overnight.
- 4
Step 4
- a.Garnish and Serve
- b.Before serving, give the dip a final stir. Taste and adjust seasoning with more salt or pepper if needed.
- c.Transfer the dip to a serving bowl and garnish generously with freshly chopped chives.
- d.Serve with sturdy potato chips (ruffled are classic), crackers, pretzels, or an assortment of fresh vegetables like carrot sticks, celery, bell peppers, and cucumber slices.
What to keep in mind.
5 tips from the recipe — small details that make a real difference to the final dish.
- 1Patience is the most important ingredient. Do not rush the caramelization process; low and slow heat is key to developing a deep, sweet flavor without burning the onions.
- 2Use a wide, heavy-bottomed skillet (like cast iron or stainless steel) for caramelizing. It provides even heat and more surface area for the onions to cook.
- 3For a smoother dip texture, you can briefly pulse the cooled onions in a food processor before mixing them into the creamy base.
- 4Always use full-fat sour cream and mayonnaise. Low-fat versions can be watery and will not provide the same rich flavor and texture.
- 5This dip is the perfect make-ahead appetizer. The flavor is significantly better on the second day.
Adapt it for your goals.
Lighter Version
Replace the sour cream with an equal amount of full-fat plain Greek yogurt for a tangier, higher-protein dip.
Spicy KickSpicy Kick
Add 1/4 teaspoon of cayenne pepper or a few dashes of your favorite hot sauce to the sour cream mixture for a bit of heat.
Smoky FlavorSmoky Flavor
Incorporate 1/2 teaspoon of smoked paprika or a tiny drop of liquid smoke into the dip for a smoky, savory depth.
Extra UmamiExtra Umami
Add 1 teaspoon of soy sauce along with the Worcestershire sauce during the final minutes of caramelizing the onions for an even deeper savory flavor.
Why this is on our healthy list.
Prebiotic Power
Onions are a rich source of prebiotics, particularly inulin and fructooligosaccharides. These fibers feed the beneficial bacteria in your gut, promoting a healthy digestive system.
Contains Antioxidants
Onions contain antioxidants like quercetin, which helps combat inflammation and fight free radicals in the body.
Probiotic Potential
If using a sour cream with live and active cultures, this dip can provide a source of probiotics, which contribute to a healthy gut microbiome.
Frequently asked questions
A 1/4 cup serving of this homemade French Onion Dip contains approximately 270 calories, primarily from the full-fat sour cream and mayonnaise.