Grate cheese finely grater. Add the flour, baking powder, cream the feta cheese (at room temperature) and soft butter. Mix products and knead until a smooth dough. Wrap the dough in transparent foil and place in refrigerator for 10 minutes. Roll out the dough on a floured counter, in rectangular shape, 1 cm thick. Cut into squares or rectangles same. Arrange crackers in pan covered with baking paper. Apply them with beaten yolk. Sprinkle each cracker with a little sesame and poppy. Finally, sprinkle with paprika, through a strainer. Pretzels bake in a preheated oven at 180C degrees 15-17 minutes. obtained about 100 cm in size 3h1.5.