A German Quickie - part two: The Food Tourist

My next german mission will consist in hunting down a couple of pastry recipes and discover new ones. I can't wait. Heh.
Culinary experiments without shame... or just a spoonful.
1. Put the dry ingredients in a bowl. Mix in the egg, then add the softened butter pieces. Work the dough slowly, for three to four minutes. Shape it into a ball, wrap it in plastic foil and let it rest in the fridge until firm. Preheat oven to 180°C.
2. On a floured surface, roll it down the best you can. Put the dough in a pie mold; pick it with a fork and bake in the oven until golden.
At that stage, fill with the banana purée (made with 2-3 bananas, 2 eggs, half a cup of sugar, half a cup of sour cream, half a cup of milk and the juice of half a lemon), sprinkle with sliced almonds if you have any and bake until golden.
The crust gets quite hard once in the fridge, i'd recommend to eat the pie at room temperature with ice cold milk.