We are in week two of holiday cookie baking. In week one, we made chocolate crinkle cookies, and now it is time for the infamous jam cookies. This jam cookie recipe is a classic shortbread cookie made from butter, sugar, and flour. It doesn't contain eggs or leavening agents like baking soda or powder, so they give you a melt-in-your-mouth buttery taste. They're easy to make and perfect for the holidays. Make these jam cookies in advance because they need to chill for at