2 pounds ground beef (I use a pound of 90%/10% and a pound of 85%/15% because I HATE greasy meatloaf.)
2 slices Rye Bread (With seeds!) cubed and yes, it has to be rye bread.
1 regular to largish yellow onion, small dice
2 eggs
3 Tablespoons Red Wine Vinegar
1 Tablespoon Worcestershire Sauce
1 teaspoon Paprika
3 tablespoons Ketchup
1-2 cloves garlic, all whacked up finely
1-2 pinches red pepper flakes or a good dollop of hot pepper sauce
1 1/2 Teaspoons kosher salt
1/2 teaspoon pepper