Slow Cooker Marinara Sauce

Ingredients

• 2 tablespoons olive oil
• ¼ cup finely chopped onion
• 3 tablespoons minced garlic
• or more to taste
• 3 (14.5 ounce) cans tomato sauce
• 1 (6 ounce) can tomato paste
• 1 tablespoon red wine
• 1 tablespoon balsamic vinegar
• 1 tablespoon ground basil
• 1 teaspoon salt
• 1 teaspoon ground black pepper
• 1 teaspoon dried cilantro
• 1 teaspoon chili powder
• 1 teaspoon ground paprika
• 1 teaspoon ground oregano
• 2 large bay leaves
• 1 pinch white sugar
• 1 pinch ground cinnamon