Hey everyone! I need some help, how do I thicken up store bought lemon frosting? I got it for really cheap, which is the reason why I bought it, but it's too thin for decorations. I also want to add some lemon zest (maybe some juice?, I don't have extract) to help add some more lemon flavor because it's a little bland to my taste. Thank you in advance!

Add confectioners' sugar. Lemon zest for flavor is fine, but juice will only thin it more.