- In a large bowl, combine the flour, yeast, sugar, and salt. Whisk together until combined. 
- Heat the water, milk, and butter in a small saucepan over medium heat until the butter is melted and the mixture is hot (but not boiling). 
- Pour the hot liquid into the dry ingredients and mix with a wooden spoon until combined. 
- Beat in the eggs one at a time, stirring until each egg is fully incorporated before adding the next. Once all of the eggs have been added, knead the dough until it is soft and elastic. 
- Cover the bowl and let the dough rise in a warm place for 1 hour. 
- Meanwhile, prepare the filling by browning the ground beef and onion in a large skillet over medium-high heat. Once cooked through, add the salt and white pepper. 
- Once the dough has finished rising, turn it out onto a lightly floured surface and roll it out into a large rectangle into a circle, about ¼-inch thick. 
- Spread the cooked meat mixture over the dough, leaving about an inch of space around all edges. Sprinkle with the cooked cabbage. 
- Beginning at one end, roll the dough up tightly into a round shape. Place them onto a parchment-lined baking sheet. 
- Bake in a preheated 375°F oven for 25 to 30 minutes, or until golden brown. 
- Serve warm with your favorite dipping sauce.