Preheat oven 450 degrees F.
Lightly flour a clean work surface. Knead dough into a ball. Roll dough out into a large rope. Form a large figure-8 with the dough on a baking sheet. Brush with the egg and sprinkle generously with salt. Bake 15 to 20 minutes until risen and nicely browned.
Let cool before serving. Serve with good, spicy mustard.
Recipe courtesy of Dave Lieberman