Chop off root end of asparagus. Some recipe books give you the following tip: holding the stalk at both ends, bend the stalk until it snaps. While this method works, it sacrifices a good 10-20% of the edible green stalk. Over time, you get a feel for where the good, darker green stalk starts and the lighter green tough part begins. This can range from 1-3" from the bottom of the stalks. Use a knife.

Wash the asparagus under cold water. Pat dry.

Bring saute pan to medium high heat. Add butter, quickly spread in pan, and then asparagus. Saute about 4-5 mins; test with a fork or tongs -- it should still be slightly firm. Season to taste with salt and pepper and serve immediately.