In a deep bowl, sift flour and baking powder together.
In a small bowl whisk eggs and vanilla extract.
Pour eggs over flour mixture.
Pour melted butter and mix with a wooden spoon.
Add in sugar then mix with your hands until a uniform dough forms.
Add milk gradually if you feel your dough is too crumbly and does not come together.
Wrap the dough in plastic wrap and refrigerate for 15 minutes.
Preheat oven to 350F brush a 9-10inch pie or tart plate with butter.
Take the dough out and cut 2/3 of the dough placing the other 1/3 in the freezer.
With your hands press 2/3 of the dough at the bottom and sides of the pie plate.
Spread the jam over.
Take out the other 1/3 and grate it over the top using a box grater.
Bake in the middle of your oven for 40 to 45 minutes.
Take the pie out and let it cool down completely.
Serve room temperature or cold.