01 -
Preheat to 375°F (190°C) and line a baking sheet with parchment paper.
02 -
Unroll the crescent dough and separate it along the perforated lines into 8 triangles, then cut each triangle lengthwise into 2 long, narrow strips for 16 strips total.
03 -
Pat the cocktail sausages dry with a paper towel so the dough grips them instead of sliding off as you wrap.
04 -
Starting about a third of the way down from the top, wind a dough strip around the sausage in a loose spiral, then stop and leave 2 to 3 inches of dough hanging past the bottom, uncovered, so it drapes down like a ghost's tail.
05 -
Set the wrapped sausages seam-side down on the baking sheet, gently fan out the dangling tail of each one so it lies flat, then brush lightly with beaten egg if using.
06 -
Bake for 12 to 15 minutes, until the dough is golden brown and the sausages are heated through.
07 -
Let the ghosts cool for 2 to 3 minutes, dip a toothpick in mustard to dot on two small eyes near the top of each one, then serve warm.