Bulgarian traditional recipe/Banitsa with cheese/Cheese pie

for the stuffing: 500 grams of yogurt 1 teaspoon of baking soda 5 eggs (medium size) 500 grams of pie crust (from the thickest. 12 pieces are in the package) You can also use the thin pie crusts, but you have to roll them into a roll of two crusts 50 grams of melted cow butter 350-400 grams of feta cheese for topping: 2 eggs 180 ml of milk 180 ml sparkling water Enjoy your meal! Thank you for watching!