Bolognese Sauce

In the stovetop-safe insert of a slow cooker over medium-high heat, warm 1 Tbs. of the olive oil. Add the ground beef, pork, salt and pepper and cook until browned, about 12 minutes. Transfer to a paper towel-lined plate. Add the pancetta to the insert and cook until crisp, about 7 minutes. Transfer to a paper towel-lined plate.

Reduce the heat to medium and warm the remaining 1 Tbs. olive oil. Add the onion, carrots and celery and cook until soft and translucent, about 8 minutes. Add the garlic and cook, stirring constantly, for 1 minute. Stir in the tomato paste and cook for 2 minutes. Add the wine and simmer until almost evaporated, about 5 minutes. Add the ground meats, pancetta, milk, tomatoes, bay leaves, cheese rind, salt and pepper and bring to a simmer.

Place the insert on the slow-cooker base. Cover and cook on high until the sauce thickens, about 3 1/2 hours. Discard the bay leaves and cheese rind. Adjust the seasonings with salt and pepper. Toss the pasta with about 3 cups sauce (reserve the remaining sauce for another use). Serve immediately and pass the grated cheese alongside. Makes 9 cups sauce.