In the bowl of a mixer, put the water, sugar, salt, and sprinkle the yeast on top. Add the melted butter and gradually add the flour as you mix and knead the dough. Add flour gradually until you have a nice smooth dough. Knead for about 5 minutes.

Turn the dough over and cover with plastic wrap. Let rise until doubled in size, about an hour.

Punch down dough and divide into 12 equal pieces with a dough cutter. Shape each piece into a smooth roll by pinching the dough together and then rolling it in the palm of your hand.

While the dough is rising, go ahead and prepare the filling.

In a large cast iron skillet, brown the ground beef and season it with salt, pepper, and garlic powder. Add the onion and sauté until ground beef is cooked through, about ten minutes.

Add the chopped cabbage and stir. Cook until the cabbage is tender.

Roll out each ball of dough and spoon filling onto the center. Pick up each corner of the dough and pinch it together on top, bringing the rest of the dough together until it’s pinched shut. Flip over and place on baking sheet.

In a small bowl, whisk together the egg and water with a fork and using a pastry brush, brush the tops of the runzas with it.

Bake in 375 degree oven for 25 minutes or until the tops are golden brown.