I've been working really hard to make a gluten free oatmeal cookie that tastes just like the cookies that my mother used to make as a child. Here it is!
In a large mixing bowl, beat butter on medium-high for 30 seconds. Add brown sugar, granulated sugar, baking powder, baking soda, salt and cinnamon. Beat with mixer until combined. Beat in eggs and vanilla until combined. Beat in half the flour until combined, then add the remaining flour. Stir in oats and raisins.
Drop rounded teaspoonfuls of dough onto an ungreased cookie sheet. Bake for 16 mins or until edges are golden brown, but not burned. Cook for only 14 minutes if you would like them to be chewier. Cool on cookie sheet for 1-2 minutes before transferring to wire cooling rack.