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How to Make Homemade Tomato Sauce: A Step-by-Step Guide

homemade tomato sauce

Tomato sauce is a staple ingredient in many households and can be used in a variety of dishes, from pasta to pizza. Making your own sauce at home is not only a great way to save money, but it also allows you to control the quality and ingredients used in your sauce. In this article, you will learn how to make and can your own homemade tomato sauce.


  • 10 lbs of ripe tomatoes
  • 1 large onion, chopped
  • 3 cloves of garlic, minced
  • 2 tablespoons of olive oil
  • 2 teaspoons of salt
  • 1 teaspoon of black pepper
  • 1 teaspoon of sugar
  • 1 teaspoon of dried basil
  • 1 teaspoon of dried oregano
  • 1 teaspoon of dried thyme


  • Cutting board
  • Knife
  • Large pot
  • Blender or food processor
  • Canning jars
  • Canning pot
  • Jar lifter

Step 1: Prepare the Tomatoes

Start by washing the tomatoes and removing the stems. Cut the tomatoes into quarters and set aside.

Step 2: Cook the Onion and Garlic

In a large pot, heat the olive oil over medium heat. Add the chopped onion and minced garlic, and cook until the onion is soft and translucent.

Step 3: Add the Tomatoes

Add the prepared tomatoes to the pot with the onions and garlic. Stir to combine, and let the mixture come to a boil. Reduce the heat to low and let it simmer for 20-30 minutes, stirring occasionally.

Step 4: Blend the Sauce

Use a blender or food processor to puree the sauce until smooth. Return the sauce to the pot and let it simmer for an additional 10 minutes.

Step 5: Season the Sauce

Add the salt, pepper, sugar, basil, oregano, and thyme to the sauce and stir to combine. Let the sauce simmer for another 10 minutes, or until it has reached the desired thickness.

Step 6: Fill the Tomato Sauce Jars

Sterilize the canning jars by washing them in hot, soapy water and then boiling them for 10 minutes. Use a jar lifter to carefully transfer the hot sauce to the jars, leaving a 1/2 inch of headspace. Wipe the rims of the jars with a clean cloth, and then place the lids and screw bands on the jars.

Step 7: Process the Jars

Lower the jars into a canning pot filled with boiling water, making sure the water covers the jars by at least 1 inch. Process the jars for 35 minutes, adjusting for altitude as needed.

sanitizing tomato sauce jars

Step 8: Store the Jars

Remove the jars from the canning pot and let them cool on a kitchen towel. Check the seals on the jars after 24 hours to ensure that they are properly sealed. Store the jars in a cool, dark place for up to a year.


Making your own homemade tomato sauce is a simple and rewarding process. By controlling the ingredients and quality of the sauce, you can be sure that you are using only the best in your cooking. With this step-by-step guide, you can make and can your own delicious tomato sauce in no time.

homemade tomato sauce