Homemade ketchup made from fresh garden tomatoes, vinegar, sugar, salt, and flavorful spices. This tomato ketchup is a delicious way to preserve your summer harvest without high-fructose corn syrup or artificial food additives.
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Slice the tomatoes in half, remove the core, and roast for 30-40 minutes or until the skins begin to char and pull away from the tomato.
Remove the tomatoes from the oven and pull the skins off with a tongs.
Place the skinned tomatoes into a blender and blend to a smooth puree.
Pour the puree into the stock pot and bring to a simmer over medium heat.
Add the vinegar, salt, allspice, ground cloves, pepper, minced garlic, and sugar to the stock pot.
Simmer for 2-3 hours or until thickened.
To blend to a smooth texture, run the immersion blender through the simmered, thickened ketchup.
Fill the water bath and bring to a boil.
Wash all the jars, lids, and rings in hot soapy water.
Fill the clean, hot jars with ketchup, leaving 1/2 inch headspace. Run the bubble popper through to release any trapped air and adjust the headspace if necessary.
Wipe the rims of the jars with a clean paper towel.
Place the lids on the jars and tighten the bands fingertip tight.
Lower the jars into the water bath, cover, and process for 15 minutes.
Remove the jars to a towel lined cutting board and allow to rest for 12 hours before labeling, dating, and storing. If any jars did not seal, refrigerate and use first.