In a large bowl, add in the flour, sugar and salt. Make a hole in the middle and pour in the yeast mixture.
Mix and add the egg and butter. This will yield a very goo-ey dough, but keep on kneading it until dough do not stick on the side of the bowl.
When dough do not stick on the side of the bowl, form it into a bowl and put in a greased bowl and cover. Let rest in a warm place for an hour to double its size.
After 1 hour, and when the dough has double in size, remove the dough from the bowl and put in a flat surface. punch dough to remove air and flatten into a rectangle.
Divide dough into 16 pieces and form into a small ball. Flatten the dough using a rolling pin and add the filling on the edge of the dough and roll.
Seal the end and the side of the dough and arrange in a non greased pan.
Roll dough in bread crumbs and line them in a non greased pan. Do the same of the remaining dough.
Cover the dough and put in a warm place, covered for another 30 minutes.
Pre heat oven at 350 F.
When the dough is ready, bake at the pre heated oven for 2o - 25 minutes,or until the top changes its color to golden brown. OR, when it sounds hollow when you top it.