This homemade marinara sauce is delicious, easy to make, and SO much better than store-bought! It's perfect for using on pizzas, pastas, and more. Find additional serving suggestions in the post above. Leftover sauce will keep for up to 4 days in an airtight container in the refrigerator and in the freezer for up to 3 months.
Heat the olive oil in a medium pot over low heat. Add the shallot, garlic, salt, and a few grinds of black pepper and cook for 3 minutes, stirring often.
Add the tomatoes and their juices, balsamic vinegar, cane sugar, oregano, and red pepper flakes. Cover and simmer over low heat for 20 minutes, stirring occasionally. Season to taste.