Directions

Preheat oven to 400 degrees.

1. Combine all meatball ingredients in a large bowl and mix with hands until well incorporated. Portion into balls using a 1 tablespoon measuring spoon and place on a sprayed or parchment-lined sheet pan and bake for 20 minutes or until internal temperature reaches 165 degrees.
2. Cook mushrooms in a dry pan until all the liquid is evaporated. Add butter and sauté until mushrooms are browned. Add onions, garlic, and capers and sauté for 3-5 minutes.
3. In a bowl whisk together sour cream, heavy cream, horseradish, beef broth, flour, pepper, and water. Add to pan with mushroom mixture and bring to a simmer to thicken, stirring constantly.
4. Add baked meatballs to horseradish sauce and stir to coat. Serve immediately.