Gob or Whoppie Pie

I grew up in Western Pennsylvania–the land of the wonderful “gob”, known in other parts as a “whoopie pie”. I have several recipes for gobs, but the homemade white filling (not the yellow stuff found in the commercially marketed gobs) never seems to be quite right; it is never as fluffy, thick, or sweet as the homemade gobs that we buy when we are in Pa. Does anyone have a recipe for that gob filling so that I can begin to enjoy my own homemade gobs? Also, does anyone have a recipe for the pumpkin gobs? I only have a chocolate recipe.

My taste buds thank you in advance,

Judy