This is a cake recipe that I've acquired recently and it is quite delicious. So, go and bake it. It's a little scant on baking instructions (it comes straight out a family's collection of recipes) but I'll try my best to guide it.
1 cup poppy seeds
1 cup flour
1 teaspoon baking powder
1 cup oil
1 cup egg yolks (keep egg whites.)
1 cup sugar
Preheat oven to 350º F. In a bowl, mix the poppy seeds with the oil; add yolks, flour, and baking soda. Knead dough. Whip the egg whites with the sugar and combine with the rest. Spread evenly in greased cake pan or baking dish, making sure that it has an even depth. Bake 30-45 minutes.
The piegusek can be cut into squares like a coffee cake and sprinkled with powdered sugar.