Make Ketchup

If you have a garden with more tomatoes than you can eat, you might want to turn some of them into homemade ketchup. It doesn't require many ingredients to make ketchup from fresh tomatoes, but you will need the right equipment for canning. This ketchup recipe makes {{safesubst:#invoke:convert|convert}}.

Steps

Prepare the Tomatoes

  1. Select 18 lb. of Roma tomatoes or 25 lb. of another variety. Roma tomatoes are a good choice because they have lower water content.
  2. Remove the skin of the tomatoes.
    • Boil water in a stockpot.
    • Add a few tomatoes at a time and cook for about a minute.
    • Dip the tomatoes into a bowl of ice water.
    • Slide the skins off.
  3. Cut the tomatoes in half and squeeze to remove the juice and seeds.
  4. Scoop out any remaining seeds with your fingers.
  5. Set the tomatoes in a strainer to drain any remaining juice. The more liquid you can remove from the tomatoes the faster the ketchup will reach the desired consistency.

Cook the Tomatoes

  1. Simmer the tomatoes in an uncovered stockpot with the onion, garlic, sugar, salt, cayenne pepper and black pepper. It should take about 30 minutes for them to get mushy.
  2. Wrap the celery seed in a 12-inch square piece of cheesecloth and tie it with a twist tie.
  3. Measure 3 cups of apple cider vinegar into a saucepan and set the cheesecloth into it. Simmer uncovered for 30 minutes.
  4. Pour the cooked tomatoes through a food mill and discard the skin and seeds.
  5. Discard the cheesecloth bag with the celery seed.
  6. Pour the vinegar into the tomato mixture.
  7. Thicken the ketchup in a saucepan over medium heat, stirring regularly. If you cook it in a slow cooker set on low heat, it will take about 12 hours with the lid off.

Can the Ketchup

  1. Pour the homemade ketchup into sanitized canning jars and put the lids and rings on.
  2. Place the jars in a stovetop pressure canner and cover with at least an inch of water. If you don't have a pressure canner, you can use a regular canner.
  3. Heat for about 30 minutes at low pressure and then remove the jars with a tongs.
  4. Wait for the jars to cool and check that each lid is properly sealed. Push down on the center of the lid and if it doesn't move or make a sound, it's properly sealed.
  5. Store or chill the jars of ketchup.



Tips

  • If you don't want to use fresh tomatoes, you can make homemade ketchup from canned whole tomatoes.
  • You can add other seasonings, such as dry mustard or cinnamon, to your ketchup recipe as the tomatoes simmer in the stockpot.

Things You'll Need

  • Tomatoes
  • Stockpot
  • Knife
  • Strainer
  • 1 cup diced onion
  • 1 clove minced garlic
  • 1 cup sugar
  • 1 tsp. salt
  • ½ tsp. cayenne pepper
  • 1 tsp. black pepper
  • Cheesecloth
  • 3 tbsp. celery seed
  • Saucepan
  • Apple cider vinegar
  • Food mill or sieve
  • Slow cooker (optional)
  • Canning jars, lids and rings
  • Large pressure canner or canner
  • Jar tongs

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References

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