The Just A Pinch Test Kitchen shows how to easily core a head of lettuce. More for You. Mulvaney warns of safety concerns over White House’s new flagpoles.

Hold the head of lettuce in both hands with the stem at the bottom facing downward. Then give the stem two or three firm taps on the counter. Don’t be afraid to bring that head of lettuce down hard.

Hold the head of lettuce in both hands with the stem at the bottom facing downward. Then give the stem two or three firm taps on the counter. Don't be afraid to bring that head of lettuce down hard.

Refrigerate your mushrooms as soon as you get home. Store them in a paper bag and keep them dry. This way, they’ll last up to five days. Do not store them in airtight plastic bags.