Just in case you missed this article on making your own ketchup the first time we shared it a couple of years ago, we are republishing it. After Trish wrote this blog originally, we got an awesome response. This is one of the PYP Best Blogs!

This is a penny pinching recipe in that it cost me nearly nothing to make. My garden has been abundant with Roma tomatoes.
But, of course, time has a value and this does take an investment of time.
This was my first time making homemade ketchup and I really think the flavor is worth the effort. It’s not at all like store bought ketchup. Much more complex flavor, which is wonderful for me since I don’t much care for regular ketchup.

This is adapted from a Jamie Oliver recipe based on the ingredients I had on hand today.

For 2 pints of ketchup you will need:
3 pounds of peeled, diced, Roma tomatoes
(Roma are best for this because of their low water content. You can use others but you’ll need an extra pound or so and after chopping them, allow them to drain in a colander for a bit. I’d like to try this next time with some of the different colored heirloom varieties. I’ll bet the colors and flavors would be quite unique.)
1 1/2 cups water
1 stalk celery, coarsely chopped
1 large onion, coarsely chopped
one inch piece of fresh ginger, coarsely chopped
2 cloves garlic, chopped
1/4 teaspoon red pepper flakes
1/4 teaspoon fennel seeds
1 Tablespoon dried basil
1 teaspoon ground coriander
2 whole cloves
salt (start with 2 teaspoons and adjust later)
1 teaspoon ground black pepper
3/4 cup plus 2 Tablespoons red wine vinegar
1/3 cup packed brown sugar
2 Tablespoons olive oil

Heat the olive oil in a large stock pot, over medium heat. Add the celery, onion, ginger, garlic, red pepper flakes, basil, coriander, fennel, cloves, salt and pepper. Cook until veggies are soft, about 10 minutes.
It’s okay to let them brown a bit. That’s flavor!

Now add the tomatoes and the water. Stir, scraping the bottom of the pot to deglaze the pot and get all the flavor stirred in.
Now you will reduce this by half. Here’s a little (admittedly OCD) trick that I use to judge when it has been reduced by half.
Put a skewer into the pot, all the way to the bottom.

Now mark that skewer where the top of the sauce was so you’ll have a way to judge when it has reduced enough. I use a sharpie.

Bring the sauce to a boil over high heat. Reduce the heat and let it simmer, uncovered until it has reduced by half, stirring occasionally. This took abut an hour for me. And it looked like this when it was done.

At this point, you can push the sauce through a food mill or a fine sieve to make the sauce as smooth as possible and remove the fennel seeds and cloves.
I have a powerful blender and don’t have a problem with a little texture to my ketchup so I just put it through the blender, in two batches, until it was as smooth as possible.
Put the sauce into a clean pan and stir in the red wine vinegar and the brown sugar.
Mark your skewer again, because it needs to reduce by half again.

Bring the sauce to a boil over high heat, reduce heat and simmer, stirring occasionally until reduced by half or as thick as you want your ketchup to be. It will thicken a little more as it cools.
This is a good time to check for seasoning and add more salt if you like. If it tastes a little too tart form the vinegar, a little more salt will tone that down.
This took another hour for me and the last half hour needed more frequent stirring as it was getting very thick by that time.
When the ketchup is finished, it can be kept in the refrigerator for several weeks.
I have no delusions that my two kids will choose this gourmet delight over the shiny, bright red gel that comes from the store. So I chose to can mine. This recipe yielded 4 half pints. I processed 3 and put one in the fridge. I’m excited to get some gourmet burgers and fries on the menu this week for my ketchup’s grand premiere!

If you want to can yours, put your water bath canner on to boil during the last half hour of reducing the ketchup.
Heat jars and lids in simmering water until ready to use. Do not boil.
Ladle hot ketchup into hot jars leaving 1/2 inch headspace. Remove air bubbles. Wipe rim. Center lid on jar. Apply band until fit is fingertip tight.
Process jars in boiling water canner for 15 minutes, adjusting for altitude. Remove jars and cool. Check lids for seal after 24 hours. Lid should not flex when pressed in center. Enjoy!

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