Grease and flour generously bundt cake pan.
Preheat over at 325 degrees.
Mix dry ingredients together until blended.
In a separate bowl, beat butter gradually adding sugar at medium speed until light and fluffy.
Add one egg at a time blending between each egg.
Add dry mixture alternating with the sour cream while beating at medium speed.
Begin and end with flour mixture.
Stir in vanilla.
Pour into pan and bake for 1 hour 30 minutes until tooth pick comes out clean.