Grandma's Meatloaf

Grandma's Meatloaf

2 pounds ground beef (80/20 works great, meatloaf mix is even better - meatloaf mix is beef, veal and pork)
1 tsp kosher salt
1/2 cup bread crumbs
1/8 tsp ground pepper
1/2 cup milk
1 egg, beaten
1 tbsp brown sugar
1 tsp dry mustard
1 tbsp Worcestershire sauce
1/2 cup ketchup
1/4 cup cider vinegar
1 tbsp dried chopped onion

Combine the first six ingredients and gently press into a loaf pan. Combine the remaining ingredients and pour over the meatloaf in pan.
Bank in 350-degree oven for 90 minutes. Let rest for 5 minutes and remove from pan, slice and serve.