I decided to serve these Swedish meatballs as a main dish but they certainly are just as fantastic as appetizers. The meatballs are packed with warm flavors: nutmeg, cinnamon and ginger.
Combine all ingredients. Form into 1-2 ounce meatballs depending on large you want them.
Transfer to baking sheets and place under your oven broiler, rotating every few minutes, until browned.
Make the sauce (see below).
Transfer the meatballs to the skillet containing the sauce. Cover and simmer 15-20 minutes, or if serving as an appetizer transfer the meatballs and gravy to a slow cooker and cook on low for 4 hours or until the meatballs are cooked through.
If the gravy gets too thick while the meatballs are cooking stir in a bit more beef broth.
For the sauce
Add the onion to a large skillet over medium heat and saute for 2-3 minutes until starting to turn golden.
Add 2 cups of the beef broth, the Worcestershire sauce, ketchup and mustard and whisk to combine.
In a small bowl or cup combine the cornstarch and 1/2 cup of beef broth. Slowly pour into the gravy while whisking.