Prepare the Meatball Mixture:

• In a small bowl, combine breadcrumbs and milk. Let it soak for a few minutes until the breadcrumbs absorb the liquid.

• Add heavy cream, egg, kosher salt, ground black pepper, ground allspice, ground nutmeg, and minced fresh parsley to the breadcrumb mixture. Stir until well combined.

Form the Meatballs:

• In a large bowl, mix together ground chicken and ground chuck. Add the breadcrumb mixture and blend well until everything is evenly incorporated.

• Roll the meat mixture into small meatballs, about 1-inch in diameter, making around 24-30 meatballs (depending on size).

Cook the Meatballs:

• In a large skillet, heat 1 tablespoon of butter and 1 tablespoon of vegetable oil over medium heat. Once the oil is hot, add the meatballs in batches, making sure not to overcrowd the pan.

• Brown the meatballs on all sides for about 5-7 minutes, turning occasionally. Once browned, remove them from the skillet and set them aside.

Prepare the Sauce:

• In the same skillet, melt 6 tablespoons of butter over medium heat. Add the minced yellow onion and minced garlic, cooking until the onion is soft and translucent (about 3-4 minutes).

• Stir in all-purpose flour and cook for 1-2 minutes to create a roux, stirring constantly to avoid lumps.

• Gradually whisk in the beef broth, chicken broth, and heavy cream, ensuring the sauce is smooth.

• Add sour cream, Beef Instant Bouillon Granules, soy sauce, Dijon mustard, Worcestershire sauce, apple cider vinegar, granulated sugar, and freshly ground black pepper. Stir to combine and bring the sauce to a simmer.

Simmer the Meatballs:

• Return the cooked meatballs to the skillet, gently nestling them into the sauce. Simmer on low heat for about 15-20 minutes, allowing the meatballs to cook through and absorb the flavors of the sauce.

Serve:

• Once the meatballs are cooked and the sauce has thickened to your liking, remove the skillet from the heat.

• Garnish with fresh minced parsley and serve with a side of lingonberry jam or cranberry sauce, if desired.

• For a comforting meal, serve the meatballs over egg noodles or mashed potatoes.