Step 1: Make an oatmeal cookie crust. Step 2: Fill it with butter, brown sugar*, eggs, cream, and more good things. Step 3: Descend into blissful carb coma for the next six months. Get the recipe.
*You may point out that this pie is not technically carb-on-carb in the sense of starchy carbs, but lest ye forget: Sugar is a perfectly respectable carb in its own right. The carb to rule all carbs!