This homemade ketchup is so easy to make from scratch in a slow cooker. It does come close to those name brands in terms of taste, texture, and color. I've never had a tomato paste-based ketchup that I liked so I decided to cook down crushed tomatoes instead.
Ingredients
- tomatoes: 2 cans (28 ounce cans, crushed)
- water: 0.5 cup (divided)
- white sugar: 0.66667 cup
- distilled white vinegar: 0.75 cup
- onion powder: 1 tsp
- garlic powder: 0.5 tsp
- ¾ teaspoons salt: 1 piece
- celery salt: 0.125 tsp
- mustard powder: 0.125 tsp
- finely ground black pepper: 0.25 tsp
- cayenne pepper: 0.25 tsp (to taste)
- whole clove: 1 piece
Metric Conversion
Stages of cooking
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Pour tomatoes into slow cooker. Swirl 1/4 cup water in each emptied can and pour into the slow cooker. Add sugar, vinegar, onion powder, garlic powder, salt, celery salt, mustard powder, black pepper, cayenne pepper, and whole clove; whisk to combine. Dotdash Meredith Food Studios
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Cook on High, uncovered, until mixture is reduced by half and very thick, 10 to 12 hours. Stir every hour or so. Dotdash Meredith Food Studios
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Use an immersion blender for about 20 seconds to smooth the texture of the ketchup. Dotdash Meredith Food Studios
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Ladle ketchup into a fine strainer and press mixture with the back of a ladle to strain out any skins and seeds. Dotdash Meredith Food Studios
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Transfer strained ketchup to a bowl. Cool completely.
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Taste and adjust salt, black pepper, and cayenne pepper as desired. Dotdash Meredith Food Studios