A creamy dip with an intensely onion flavored base. A splash of lemon juice adds some brightness while a bit of Worcestershire sauce gives it a meaty, umami-ful backbone. Looking to up the umami factor even more, I decided to also add a touch of grated Parmesan cheese.
This recipe was cross-tested in 2022 and updated to omit the baking soda.
2 teaspoons sugar
3 large yellow onions (1 1/2 pounds; 680g), finely diced
1 tablespoon (15g) unsalted butter
1 teaspoon Diamond Crystal kosher salt, plus more as needed; for table salt, use half as much by volume
1/2 teaspoon freshly ground black pepper
1/2 cup (120ml) water
3/4 cup sour cream
1/2 cup mayonnaise
1 teaspoon lemon juice
1/2 teaspoon Worcestershire sauce
1/2 ounce (15g) finely grated Parmesan cheese
1 tablespoon finely sliced chives
Heat sugar in a 12-inch stainless-steel skillet over medium-high heat until completely melted and light brown, about 3 minutes. Immediately add onions and stir with wooden spoon to coat onions in sugar. Add butter, salt, and black pepper. Stir to combine. Cook, shaking pan occasionally until onions release all their liquid and brown coating builds up on bottom of pan, 6 to 8 minutes.
Add 2 tablespoons water shake pan while scraping with wooden spoon to deglaze brown bits from bottom of pan. Continue cooking, shaking occasionally until coating begins to build up again, about every 2 minutes. Repeat deglazing and cooking steps three more times until all water is used up and onions are deep brown. Transfer to medium mixing bowl and allow to cool at room temperature for 10 minutes.
Add sour cream, mayonnaise, lemon juice, parmesan, and Worcestershire and whisk to combine. For a smoother texture, run through blender or food processor for 1 minute until smooth. Chill in a sealed container for at least 1 hour and up to 5 days (flavor will improve with time). Spoon into a bowl, sprinkle with chives, and serve with potato chips.
This Recipe Appears In
|Nutrition Facts (per serving)|
|Amount per serving|
|% Daily Value*|
|Total Fat 17g||21%|
|Saturated Fat 5g||25%|
|Total Carbohydrate 11g||4%|
|Dietary Fiber 1g||4%|
|Total Sugars 6g|
|Vitamin C 5mg||25%|
|*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.|