Ingredients

1-1/2 cups coarsely chopped sweet onion (about 1/2 large onion)

1 cup coarsely chopped peeled carrots (3-4 small carrots)

1 cup coarsely chopped celery (1-2 stalks)

4 tablespoons olive oil, divided

1 pound lean ground beef

1 cup beef broth made from bouillon plus additional bouillon (optional)

1 28-ounce can crushed tomatoes

3 sprigs basil

2 large garlic cloves

1 teaspoon dried oregano

Kosher salt and freshly ground black pepper

Sugar

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Preparation

Pulse onion, carrots, and celery in a food processor until finely chopped; set aside. Heat 1 Tbsp. oil in a large deep skillet over medium-high heat. Add ground beef and cook, stirring often, until brown and cooked through, 4-5 minutes. Scrape into a medium bowl and set aside. Wipe skillet clean and add remaining 3 Tbsp. oil; heat over medium heat. Add reserved onion mixture and cook, stirring often and lowering heat if starting to brown, until softened, about 20 minutes. Add broth and 1 cup water. Stir in reserved meat, tomatoes, basil, garlic, and oregano. Let simmer, stirring occasionally, until flavors meld and sauce thickens 1-1 1/2 hours. Remove garlic; crush with the back of a spoon and stir back into sauce. Season sauce to taste with salt, pepper, sugar, and more bouillon, if desired.

Read More http://www.bonappetit.com/recipes/2012/04/nonna-consuelos-bolognese-sauce#ixzz1s9eVVHNG