Preheat the oven to 475 degrees F (245 degrees C).
In a large bowl, combine ground beef and pork, bread crumbs, 1/2 cup milk, egg, garlic, salt, pepper, and allspice. Mix until just combined.
Use a rounded 1-tablespoon measure to form the mixture into meatballs.
Place the meatballs on a baking sheet.
Bake in the preheated oven for 10 to 12 minutes, or until golden brown and cooked through, rotating the sheet halfway through. Make sure the internal temperature of the meatballs reaches at least 160 degrees F (72 degrees C).
While the meatballs are baking, melt the butter in a medium saucepan over medium-high heat.
Add the flour to the melted butter and cook, whisking constantly, for about 1 minute. Be careful not to burn or brown the flour.
Gradually whisk in the broth and remaining 1/4 cup milk. Bring the mixture to a boil.
Reduce the heat and simmer until the sauce has thickened slightly, for about 2 to 3 minutes.
Stir in Worcestershire sauce and remove the sauce from heat.
Fill a large pot with lightly salted water and bring it to a rapid boil.
Cook the egg noodles in the boiling water until they are tender yet firm to the bite, usually for 7 to