French Onion Dip · Caramelized Onion

Caramelized French Onion Dip

Onions cooked low and slow until jammy and deep brown, then folded into sour cream with a little mayonnaise, Worcestershire and chives. The from-scratch version of the party classic, made for potato chips.

New, no ratings yet0 reviewsby Simmerbee Kitchen

Prep
10 min
Cook
40 min
Total
1 hr 50 min
Serves
about 2 cups
Level
Easy

Ingredients

  • 2 tbsp butter
    Swaps for butter

    Instead of butter

    • Plant-based butter sticks: The same amount. The closest swap.
    • Refined coconut oil: The same amount: solid when the butter is soft or cold, melted when it is melted. It is all fat, so bakes are a bit more tender and rich, with no butter flavor.
    • Vegetable oil: 3 tbsp oil for every 4 tbsp (¼ cup) melted butter. Cakes and muffins come out moister and stay soft longer, without a buttery taste.

    More for butter

    Cooking for an allergy? Check every label.

  • 1 tbsp olive oil
    Swaps for olive oil

    Instead of olive oil

    • Avocado oil or another neutral oil: The same amount. No olive flavor; avocado oil handles higher heat.
    • Butter: The same amount. Richer and nutty when browned.
    • A neutral oil + more seasoning: The same amount. Dressings lose the fruity, peppery note; a little extra lemon, garlic or mustard makes up for it.

    More for olive oil

  • 2 large yellow onions, halved and thinly sliced
    Swaps for yellow onions

    Instead of onion

    • Another onion: The same amount. Yellow is the all-rounder; white is sharper and crisper; red is milder raw and adds color; sweet onions are mildest.
    • Shallots: The same amount, chopped. Milder and sweeter, with a hint of garlic.
    • Leeks: About 1½ times as much, white and light green parts. Milder and softer when cooked.

    All 4 swaps for onion

  • ¾ tsp kosher salt, divided
    Swaps for kosher salt

    Instead of salt

    • Table salt or fine sea salt: About half as much as Diamond Crystal kosher, about ¾ as much as Morton kosher. The same saltiness when measured this way.
    • Salt by weight: 1 tsp is about 6 grams of table salt, 5 grams of Morton kosher, 3 grams of Diamond Crystal kosher. The most reliable way to swap, especially in baking and brines.

    More for salt

  • 1 tbsp water, as needed
  • 1 ½ cups sour cream ≈ 345 g
    Swaps for sour cream

    Instead of sour cream

    • Plain Greek yogurt: The same amount (full-fat for baking). Tangier and a little less rich.
    • Crème fraîche: The same amount. Richer and milder, and it doesn't curdle in hot sauces.
    • Cottage cheese, blended: The same amount, blended smooth with a squeeze of lemon. Milder and less rich, with more protein.

    All 4 swaps for sour cream

  • ¼ cup mayonnaise ≈ 55 g
    Swaps for mayonnaise

    Instead of mayonnaise

    • Plain Greek yogurt: The same amount. Tangier and lighter; a bit looser.
    • Egg-free (vegan) mayo: The same amount. Very close.
    • Sour cream: The same amount. Tangier and less rich.

    All 4 swaps for mayonnaise

    Cooking for an allergy? Check every label.

  • 1 tsp Worcestershire sauce
    Swaps for Worcestershire sauce

    Instead of Worcestershire sauce

    • Soy sauce + vinegar: 1 tbsp soy sauce + ¼ tsp vinegar + a pinch of sugar for each 1 tbsp. Savory and tangy, less complex.
    • Vegan Worcestershire: The same amount. Very close, with no anchovies.

    More for Worcestershire sauce

  • ¼ tsp garlic powder
    Swaps for garlic powder

    Instead of garlic

    • Fresh garlic: 1 clove for each ⅛ tsp powder, minced fine. Sharper and stronger.
    • Granulated garlic: About twice as much as the powder. The same flavor in coarser grains, which blend better into rubs.

    More for garlic

  • ¼ tsp black pepper
  • 2 tbsp fresh chives, finely chopped
    Swaps for fresh chives

    Instead of chives

    • Dried chives: 1 tsp dried for each 1 tbsp chopped fresh (a third as much). Freeze-dried chives keep color but little flavor; use them only as a garnish.
    • Green onion tops: The same amount, sliced thin. Stronger and crunchier.

    More for chives

  • To serve
  • potato chips, for serving

Missing something? Tap Swaps next to an ingredient, or see all substitutions.

Steps

Kid helper. A child can do steps 4, 5 and 6: no knife, no heat. Steps marked “Grown-up” use a knife or heat. Cooking with kids

  1. Melt the butter with the oil in a large skillet over medium heat. Add the onions and 1/4 teaspoon of the salt and stir to coat.
    Grown-up: heat
  2. Cook, stirring every few minutes, until the onions are soft, sticky and deep golden brown. Lower the heat if they brown too fast, and add a splash of water to loosen any dark bits stuck to the pan.
    ⏱ Caramelize onions: 40 minGrown-up: heat
  3. Spread the onions on a plate and let them cool completely, then
    chop (how to chop) Chop Cut food into bite-size pieces that don't have to match exactly. 1. Cut a flat side on round food and lay it on that side so it can't roll.2. Slice the food into strips about as wide as the pieces you want.3. Turn the strips and cut across them.4. Rock the knife over any big pieces until they are about the same size. Done when: The pieces are close enough in size to cook in the same time, about ½ inch unless the recipe says otherwise. Safety: Keep the fingertips of your guiding hand curled under, knuckles toward the blade, and set the board on a damp towel so it can't slide.How to chop vegetables and herbs: mistakes to avoid
    them finely.
    ⏱ Cool onions: 15 minGrown-up: knife, heat
  4. Stir the sour cream, mayonnaise, Worcestershire, garlic powder, pepper and remaining salt together in a bowl.
    Kid step
  5. Fold (how to fold) Fold Combine a light mixture (whipped cream, beaten whites) or chunky add-ins into a batter gently, so it stays airy. 1. Put the lighter mixture on top of the heavier one, or add the flour or chips.2. Cut a rubber spatula straight down through the middle to the bottom of the bowl.3. Sweep it across the bottom and up the side, then turn it over on top.4. Turn the bowl a quarter turn and repeat.5. Stop as soon as no streaks remain. Done when: There are no dry streaks or white blobs, and the mixture still looks light and puffy. Safety: Batters with raw eggs or flour aren't safe to eat raw.How to fold ingredients into a batter: mistakes to avoid
    in the onions and most of the chives, then cover and refrigerate so the flavors blend.
    ⏱ Chill dip: 45 minKid step
  6. Stir, taste for salt and sprinkle with the rest of the chives before serving with chips.
    Kid step

Tap an underlined word for how to do it, or see all techniques.

Tips

  • Don't rush the onions on high heat; slow cooking turns their sugars sweet and savory instead of burnt.
  • It tastes even better the next day.

Storage

Refrigerate up to 4 days. Don't leave it out at room temperature more than 2 hours.

Make ahead

Make the dip up to 2 days ahead and keep it covered in the fridge.

Quick answers

Can I make it ahead?

Make the dip up to 2 days ahead and keep it covered in the fridge. It tastes even better the next day.

What can I swap?
  • Instead of butter: Plant-based butter sticks, the same amount.
  • Instead of olive oil: Avocado oil or another neutral oil, the same amount.

Cooking for an allergy? Check every label.

Answered from this recipe's own storage, make-ahead and swap notes.

Estimated nutrition per serving

Calories
190
Protein
2 g
Carbohydrates
6 g
Fiber
<1 g
Sugars
3 g
Fat
18 g
Saturated fat
7 g
Sodium
250 mg

Whole recipe, 8 servings: about 1,510 calories.

Estimate from USDA FoodData Central; not medical or dietary advice. Based on 11 of 11 ingredients.

How we estimate

We add up USDA FoodData Central values for each measured ingredient as written and divide by the recipe's 8 servings, so changing the servings or units here doesn't change a serving. Brands, swaps, trimming and cooking all change the real numbers.

Not counted: potato chips (to taste or as needed).

Estimated cost

About $0.50 a serving

About $4.10 for the recipe as written (8 servings).

Estimate; prices vary by store and region. U.S. average prices for September 2026 from BLS Average Price Data and USDA ERS Purchase to Plate prices updated with the BLS Consumer Price Index. Priced: 8 of 11 ingredients, 99% by weight.

How we estimate

Each measured ingredient is weighed as in the nutrition estimate and priced at the U.S. average: BLS's average price where BLS publishes one, else USDA ERS's Purchase to Plate price for 2017-18 raised to September 2026 with the CPI for that food group. Whole packages, store brands, sales and regions all change the real cost: treat it as a ballpark.

  • sour cream $1.85 ERS
  • yellow onions $0.95 ERS
  • fresh chives $0.45 ERS
  • mayonnaise $0.35 ERS
  • butter $0.25 BLS
  • olive oil $0.20 ERS
  • Worcestershire sauce $0.05 ERS

Free: water (tap water).

Not priced (no official average price we can match, so not in the total): kosher salt, garlic powder, black pepper.

Not counted: potato chips (optional, or to taste).

More dishes for less: cheap eats.

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Cleanup score 4/5 (easy cleanup): 2 things to wash, stainless skillet, mixing bowl.

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