Wash asparagus spears, and trim off woody ends. Cut the spears with a roll cut, setting the tips aside.

Heat oil and butter in a fry pan, over medium high heat. Add the cut spears (not the tips) and stir. Continue to stir once each minute or so, for 4-5 minutes, until the pieces start to shrink and brown slightly.

Add the tips, and saute another minute.

Serve at once.