MEATLOAF 101
Source: Martha Stewart Living on FoodTV; Episode#: MS1D03"

4 slices white bread, torn into pieces
2 1/2 pounds ground beef
1 medium yellow onion, peeled and cut into eighth's
2 cloves garlic
2 stalks celery, cut into 2-inch pieces
2 carrots, peeled and cut into 2-inch pieces
1/2 cup flat-leaf parsley leaves
1 large egg
1 cup ketchup, divided use
1 tablespoon coarse salt
3 teaspoons dry mustard, divided use
2 teaspoons freshly ground black pepper
2 tablespoons brown sugar

Heat oven to 375 degrees F.

Place bread in the bowl of a food processor fitted with a steel blade; pulse until fine crumbs form.

Transfer to a medium bowl, and add ground beef.

Place onion, garlic, celery, carrots, and parsley in the bowl of a food processor fitted with a steel blade; pulse until fine. Add to meat mixture, using hands to mix well.

Add egg, 1/2 cup ketchup, salt, 2 teaspoons dry mustard, and pepper; use hands to combine thoroughly. Place in an 8 1/2 by 4 1/2 by 2 1/2-inch loaf pan.

Combine remaining 1/2 cup ketchup, remaining teaspoon dry mustard, and brown sugar in a bowl; stir until smooth. Brush mixture over meatloaf; place in the oven with a baking pan set on the rack below to catch drippings.

Cook until a meat thermometer inserted in the center reads 160 degrees F about 90 minutes. If top gets too dark, cover with foil, and continue baking.