Based on http://www.geniuskitchen.com/recipe/ultimate-pizza-sauce-114392
- bacon grease or schmaltz
- 3 med yellow onions, finely chopped
- 3 tbs minced garlic
- 2 tablespoons olive oil
- 2 (29 fl oz) cans tomato sauce
- 2 (24 fl oz) cans tomato paste
- 1 (14.5 fl oz) can petite diced tomatoes
- 2 tablespoons grated parmesan cheese
- 1 tbs salt
- 2 tbs sugar
- basil
- oregano
- marjoram
- rosemary
- black pepper
- 1 tbs fennel seed
- Saute onion and garlic in bacon grease or schmaltz until soft and transparent.
- Combine ingredients in slow cooker, bring to simmer for at least an hour