The Recipe · No.887 · Steakhouse Blooming Onion Dip

Steakhouse Blooming Onion Dip, and where to source it

Horseradish is the ingredient nobody can name. It's what makes the dip bite back instead of tasting like seasoned mayo — start light, because it builds as it rests.

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Published July 2026 · Sourcing verified 5 Jul 2026

Prep5 min
Cooknone — chill
Makesabout 1 cup
CuisineAmerican
Greedometer ●●●●● A fair little treat Level Easy
A reasonable little indulgence.
Cook it with
No-cook
Suits
VegetarianGluten-free
Contains  dairy · eggs
Make it vegan: use plant milk, oil, or a vegan cheese for the dairy, and a flax or aquafaba egg for the egg.
Straight Answers
Can you freeze Steakhouse Blooming Onion Dip? — Not ideal

Not really — the cream, custard, or emulsion turns grainy or splits once thawed. This one is best kept fresh in the fridge.

Can you make Steakhouse Blooming Onion Dip ahead of time? — Yes

Yes — it keeps in the fridge for several days; stir or shake it before serving.

Is Steakhouse Blooming Onion Dip gluten-free? — Yes

Yes — nothing in this recipe as written contains gluten. As always, glance at the labels on any packaged items (broth, sauces, chocolate), since brands vary.

Is Steakhouse Blooming Onion Dip vegan? — Vegetarian, not vegan

It’s vegetarian but not vegan as written — it has dairy and egg. Make it vegan: use plant milk, oil, or a vegan cheese for the dairy, and a flax or aquafaba egg for the egg.

Part One
The Ingredients — and where to get them
Cook for 1 cup
Our ratio, your call. The amounts below are a tested starting point — a version, not the one and only. Anything tagged to taste is the knob you turn: start there, then make it yours.
Mayonnaise
The creamy base. Real, full-fat.
1/2 cuprecommended
Source it →
Sour cream
For tang and body. A cultured full-fat sour cream is best.
2 tbsprecommended
Source it →
Ketchup
For color and a little sweetness against the heat.
2 tbsprecommended
Source it →
Prepared horseradish
The signature bite — start with less, it strengthens overnight. To taste.
1–2 tspto taste
Local / market
Paprika and cayenne
Recommended to start; paprika for color, cayenne for heat. Both to taste.
1/2 tsp + a pinchto taste
Source it →
Dried oregano
A pinch for the steakhouse-seasoning note. Optional.
1/4 tspto taste
Source it →
One list, with a link to where to buy each one.
Part Two
The Method
  1. StirStir everything together until smooth and evenly colored.
  2. RestChill at least an hour — the horseradish and cayenne both bloom and even out as it sits.
  3. AdjustTaste cold and add horseradish or cayenne for more bite.
Part Three
The Toolkit

Mixing bowl · Spatula

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