01 of 06
Ingredients You'll Need
- Tomatoes (about 5 to 6 lbs. for every quart of sauce that you want to make)
- Chopped onions (one medium onion per quart of sauce)
- Minced garlic (one to one-and-a-half cloves per quart)
- Olive oil
- Basil (1/2 tsp. per quart)
- Oregano (1/2 tsp. per quart)
You May Also Want to Add:
- A small amount of sugar
- Additional spices
02 of 06
03 of 06
Remove the Skins, Stems and Seeds
Once the tomatoes are cool enough to handle, remove their skins, and cut out the spot where the stems used to attach to the tomatoes (this is referred to as coring the tomatoes). Then, slice the tomatoes in half, and scoop out the seeds. Don't worry if you miss some. A few left behind won't hurt a thing.
04 of 06
Saute the Onion and Garlic
Add a small amount of olive oil to the bottom of a large pot (around 1/4 cup). Then, saute the onions and garlic until they're soft (a few minutes should do it).
If you'd like to add carrots or peppers to your sauce, saute them along with the onions and garlic.Continue to 5 of 6 below.
05 of 06
Combine All the Ingredients and Cook
Add the tomatoes and all of the remaining ingredients to your onion-garlic mixture, and bring the pot to a boil. Then, reduce the heat, and simmer uncovered until the sauce reaches your desired thickness. Stir frequently to keep the sauce from burning. This will take at least two to three hours but could take longer if there's a lot of water in your tomatoes (non-paste tomatoes tend to have more water content, but so do tomatoes grown during rainy years).
06 of 06
Jar Your Sauce
Pour your finished sauce into jars. Use freezer jars if you want to freeze your sauce or canning jars if you'd like to can your sauce for shelf-stable storage.
Note: To safely water-bath can tomato sauce, you must add lemon juice to boost the acidity. Tomatoes aren't as acidic as they used to be. Refer to the National Center for Home Food Preservation's guidelines for complete tomato canning instructions and times.
Want homemade tomato sauce without all the work?
Try our crock pot tomato sauce. It requires no peeling, seeding or coring. Just stir it every so often, and you'll have a batch of sauce by the end of the day.