My mom made these for my family's Christmas party and my family thought they were so good. When my mom made these she did not add the red pepper flakes due to these being served to children. When I made them I did the same as my mom except I used a 12oz jar of orange marmalade to use up a couple of leftover tablespoons. I also used Aldi's brand frozen meatballs. The recipe is from Sandra Lee at Food Network.