PREPARATION:
1st Step
Dissolve the yeast in warm milk in a small basin and let aside for 5 minutes, or until foamy. Combine the sugar, softened butter, salt, egg, and yeast mixture in a large mixing basin.
2nd Step
Mix in the flour gradually until a soft dough forms. Knead the dough until smooth and elastic on a floured surface. Place the dough in an oiled basin, cover, and let aside for approximately 1 hour, or until doubled in size.
3rd Step
Cook the ground beef in a large pan over medium heat until browned. Cook until the chopped onions and shredded cabbage are softened in the skillet.
4th Step
Season the filling to taste with salt and pepper. Any extra liquid should be drained from the skillet.
5th Step
Prepare the oven to 350 degrees Fahrenheit (175 degrees Celsius). Punch the rising dough down, divide it into two equal pieces, and roll out one half to fit the bottom of a prepared baking dish.