lasagna

Ingredients

• 1 tbsp extra-virgin olive oil
• 2 tbsp unsalted butter
• 4 ounces pancetta – finely diced
• 3/4 cup onion – finely chopped ( ~1 medium onion )
• 1/2 cup carrot – finely chopped ( ~1 medium carrot )
• 1/2 cup celery – finely chopped
• 1 pound ground beef
• 1 1/4 tsp kosher salt
• 1/2 tsp black pepper
• 1/2 cup dry white wine
• 1 cup whole milk
• 2 tbsp tomato paste
• 1 1/2 cups crushed tomatoes
• 1 cup beef broth
• 4 tbsp unsalted butter
• 4 tbsp all-purpose flour
• 4 cups whole milk
• 3/4 tsp kosher salt
• 1/4 tsp ground nutmeg
• 2 cups all-purpose flour
• 3 large egg
• 1/2 tsp kosher salt
• 4 quarts water
• 1 tbsp kosher salt
• 1 tbsp unsalted butter – softened (for greasing)
• 1 1/2 cups Parmigiano-Reggiano cheese – finely grated