Onion Ketchup

If you love ketchup, get ready for your new obsession – onion ketchup! It’s loaded with delicious, bold flavor and is perfect as a dipping sauce or topping for almost anything.

Closeup shot of onion ketchup in glass jar

This delicious ketchup variation is so much more than what we’re used to. It’s bold and pairs perfectly with all your favorite foods like burgers, dogs, meatloaf, french fries, and more.

Onion Ketchup

I love ketchup on almost everything. It’s a running joke in our house, that I’ve probably tried ketchup on everything. This delicious variation really IS good on almost everything, though!

Closeup shot of spoon in jar filled with onion ketchup

Ingredients

It only takes a few basic ingredients to make this recipe. You probably have them all in your kitchen right now.

  • white onion
  • butter
  • brown sugar
  • white vinegar
  • ketchup
Overhead shot of individual onion ketchup ingredients on table

Instructions

It only takes a few minutes and a few easy steps to make this easy recipe.

Step 1: Heat a skillet over medium-low heat.

Step 2: Add butter and melt it, stirring often.

Step 3: Add onions and sprinkle brown sugar over top.  Saute for 15 minutes.

Overhead shot of melted butter, diced onions, and brown sugar in skillet

Step 4: Reduce heat to low and stir in white vinegar and ketchup.

White vinegar being poured into skillet

Step 5: Simmer for 10 minutes, stirring occasionally.

Overhead shot of onion ketchup in pan

Step 6: Remove from heat and allow to cool a bit before using.

Closeup shot of onion ketchup in glass jar

Equipment

You’ll only need a few pieces of basic equipment to make this recipe.

  • Measuring cups and spoons
  • Knife
  • Cutting board
  • Spoon
  • Pan

Substitutions

Sweet Onion: Sweet onion works well if you don’t have white onion.

Apple Cider Vinegar: You can use apple cider vinegar in place of white vinegar if you like.

Cloesup shot of onion kethcup in jar

Options

Looking for ways to change up this onion ketchup recipe? Here are some suggestions.

Spicy: Add red pepper flakes or diced jalapenos to the mix for a spicy kick.

Molasses: For super deep flavor, use molasses instead of brown sugar.

Tips:

  • Never cook your onion mixture on heat that’s higher than medium-low. You want the onions to soften, not burn.
  • Stir often while cooking the onions so they cook uniformly and don’t brown.
  • Refrigerate your ketchup.
Closeup shot of spoonful of onion ketchup

More Condiment Recipes

FAQ

What is ketchup?

It’s a sweet and tangy condiment made with tomatoes. Although, early American recipes also used egg whites, mushrooms, oysters, grapes, mussels, walnuts, and other ingredients.

Who invented tomato ketchup?

It was invented in 1812 by James Mease, a Philadelphia scientist.

How long is this ketchup good?

It will last for about a week in the refrigerator in an air-tight container.

Closeup shot of onion ketchup in jar.

Onion Ketchup

Ready to cook this onion ketchup? Then print the recipe card below.

Yield: 1 1/2 cups

Onion Ketchup

Onion Ketchup

Onion ketchup takes regular ketchup and kicks it up with onions, butter, brown sugar, and vinegar. It's ketchup times 1,000!

Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes

Ingredients

  • 1 white onion, diced
  • 6 tbsp butter
  • 3 tbsp brown sugar
  • 2 tbsp white vinegar
  • 1 cup ketchup

Instructions

  1. Heat a skillet over medium-low heat.
  2. Add butter and melt it, stirring often.
  3. Add onions and sprinkle brown sugar over top.  Saute for 15 minutes.
  4. Reduce heat to low and stir in white vinegar and ketchup.
  5. Simmer for 10 minutes, stirring occasionally.
  6. Remove from heat and allow to cool a bit before using.

Nutrition Information

Yield

24

Serving Size

1

Amount Per Serving Calories 43Total Fat 3gSaturated Fat 2gTrans Fat 0gUnsaturated Fat 1gCholesterol 8mgSodium 114mgCarbohydrates 4gFiber 0gSugar 4gProtein 0g

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