New York-style Red Onion Sauce for Hot Dogs

published by Arri London PhD on Mar 12, 2009

A classic New York-style red onion hot dog sauce. As good as from the cart.

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 A fan oif hot dogs!

Image by edenpictures via Flickr


Note: New York-Style Red Onion Sauce for Hot Dogs can be frozen, if desired.


  • 1 medium onion, halved and sliced thin
  • 1 1/2 tsp  vegetable oil
  • 4 c water divided
  • 2 tbs tomato paste
  • 1/4 c vinegar
  • 2 tsp corn syrup (or use sugar)
  • 1 tsp cornstarch dissolved in 1/4 c of the water
  • 1/2 tsp salt
  • 1/4 tsp crushed red pepper flakes (or black pepper)


Soften the sliced onion in the vegetable oil in a heavy saucepan. Add the water, tomato paste, vinegar and corn syrup or sugar. Bring to a boil, turn heat down and simmer until the onion is cooked through. Add the cornstarch mixture and bring back to a boil, stirring constantly. Season to taste with salt, black pepper and red pepper flakes.

Tomato ketchup can be used in place of the tomato paste, vinegar and sweetener. It contains the same ingredients. 

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4 Responses so far | Have Your Say!

  1. # 1 by Dee Gold
    March 15th, 2009 at 5:22 pm #

    I would try this

  2. # 2 by sam234
    March 25th, 2009 at 8:17 pm #

    From NYC and miss this sauce. Now we can make our own.

  3. # 3 by sam234
    April 6th, 2009 at 10:44 am #

    u r right..ketchup works well in this. tx!

  4. # 4 by 92116beachy
    January 27th, 2010 at 8:17 pm #

    Can’t get Red Onion sauce around here either. Thanks for the easy recipe. It really belongs on hot dogs…yum!

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