Famous King Arthur Flour Pumpkin Coffee Cake Ideas. It also has a soft, plush texture, thanks to cake flour and sour cream, and a deep pumpkin flavor paired with fragrant, flecked vanilla. Lightly grease an 8 square pan or 9 round pan.

Add more milk if necessary to achieve a drizzly consistency. Lightly coat an 8x8 metal baking pan with vegetable oil. Line with parchment paper, leaving overhang on 2 sides.