01 -
Preheat your oven to 375°F (190°C). Lightly grease an 8×8-inch baking dish with cooking spray or butter.
02 -
In a small bowl, combine the squeezed dry sauerkraut and Thousand Island dressing. Mix well and set aside.
03 -
Unroll the crescent roll dough and divide it in half. On a lightly floured surface, press and pinch the seams together on one half of the dough to create a seamless sheet. Roll it out into a 12-inch square.
04 -
Place the rolled-out dough in the prepared baking dish, covering the entire bottom to form the base crust. Bake for 8-10 minutes, or until lightly browned.
05 -
Remove the pre-baked crust from the oven. Layer 4 slices of Swiss cheese over the crust, followed by the corned beef, the sauerkraut-dressing mixture, and top with the remaining 4 slices of Swiss cheese.
06 -
Roll out the second half of the dough on a floured surface, pinching the perforations closed. Roll to a 9-inch square and place it over the layered ingredients, covering the filling completely.
07 -
Seal the edges by pressing the top and bottom crusts together around the perimeter. Brush the top crust with the beaten egg white for a golden finish.
08 -
Return the dish to the oven and bake for 15-20 minutes, or until the cheese is melted and the top crust is golden brown.
09 -
Allow the bake to cool for 5 minutes before slicing and serving. This helps the filling set and makes it easier to cut clean slices.