Recipe(tried): Polish Cheesecake with shortbread crust and pineapple layer

I am of Polish ancestry (both parents were Polish) and this is the recipe I use to duplicate the cheesecake we had at Easter when I was a child. Hope this helps you.

POLISH CHEESECAKE
From: Misplaced in AZ

Note from: Marilyn in FL: Nana, I think Misplaced nailed it. Here is a filling that uses farmer's cheese (or very well-drained cottage cheese)

FOR THE COOKIE DOUGH:
2 1/2 cups flour
2 tsp. baking powder
1/2 cup sugar
1/4 cup butter or margarine
2 eggs, beaten
1/4 cup milk
1 (20 oz) can crushed pineapple, partially drained (just not dry).
FOR THE CHEESECAKE FILLING:
750 grams (about 30 oz or close to 2 pounds) farmers cheese (I used a brand called Friendship found with the cream cheese packages)
150 grams (about 2/3 cup) sugar (or SPLENDA)
3 Tbsp lemon juice
1/2 tsp salt
50 grams (about 2 Tbsp) potato starch/potato flour (or cornstarch)
4 eggs, separated
1 cup heavy cream, whipped

Preheat oven to 350 degrees F. Pan sizes: 9x13 or 11x17-inches, depending on how high you want the cake. (I use 2 [lasagna pans] disposable foil pans, one inside the other. To remove from the pan after baking, I loosen the sides then cut the pan and peel it away).

TO MAKE THE COOKIE DOUGH:
Mix flour, baking powder, 1/2 cup sugar, and margarine. Work as for pie dough.

Then add beaten eggs and milk. Pat in pan which has been greased on bottom and sides. Cover dough with pineapple.

TO MAKE THE CHEESECAKE FILLING:
Cream the cheese with the sugar until very smooth. Add lemon juice, salt and potato starch. Add eggs yolks and beat slightly.

Beat heavy cream until soft peaks form. Fold into the cheese mixture.

Beat egg whites until soft peaks form and fold into cheese mixture. Pour cheese over pineapple.

TO BAKE:
Bake 350 degrees F for about one hour. Test with knife in center to see if done.

The following note is what drew me to this recipe, because the cheesecake I had as a child was very dense and heavy:

NOTE: I found this filling to be heavy and dry, which surprised me as I assumed all the whipped ingredients would lighten it. I was wrong.