Combine flour and baking powder in a separate bowl. Stir and set aside.
Mix the butter and sugar together until thoroughly creamed.
Add eggs one at a time to the sugar mixture, along with a tablespoon of the flour mixture.
Mix just until incorporated.
Add the rest of the dry ingredients a little at a time.
Pour into a greased and floured 10" circle pan. Bake at 375 for 25 minutes (start watching after 20. Cake is finished when toothpick inserted comes out clean).