Stir in instant yeast into lukewarm water with 1 tablespoon sugar.Set aside.

In a large bowl, combine all purpose flour, salt, remaining sugar, vanilla extract.

Beat eggs in separate bowl until foamy.

Combine flour mixture, beaten eggs and instant yeast.

Sprinkle skim milk by using tablespoon little by little and slowly knead until forming a dough.

Set aside in a bowl covered with damp cloth for about 1 hour for it to double its size.

After the dough has risen, form a little ball of dough and insert the pineapple filling using hand.

Place in baking tray.

Cook in preheated oven at 175 C for 20 minutes until the crust turns brown.