01 -
Place frozen rolls several inches apart on parchment-lined baking sheets. Cover with lightly greased plastic wrap and let thaw and rise at room temperature until puffy, about 3-5 hours depending on your kitchen.
02 -
Cook the ground beef in a large skillet over medium heat, breaking it into small crumbles, until no longer pink. Drain excess fat if the pan looks greasy.
03 -
Add butter, onion, cabbage, Worcestershire sauce, salt, pepper, and caraway seeds if using. Cook for 8-10 minutes, stirring often, until the cabbage is tender and most moisture has cooked off.
04 -
Transfer the filling to a shallow dish and let it cool for 10-15 minutes. It should be warm or room temperature before it touches the dough.
05 -
Heat the oven to 350°F (175°C). On a lightly floured surface, flatten each roll into a 4-inch round. Add about 2 tablespoons filling, pull the edges together, and pinch firmly to seal.
06 -
Place pockets seam-side down on parchment-lined baking sheets. Whisk the egg with milk, brush over the tops, and bake for 18-20 minutes until golden brown. Rest 5 minutes before serving.