I work in one of NYC’s food havens, the Chelsea Market Building. And the other day, during a lunchtime stroll, I was pleasantly surprised to find the pair behind grillchef.com giving out samples of the most amazing grilled cheese sandwich I have had. It was just a bite, but they handed out the recipe and I had to make my own. Here’s how: You need crusty bread (of course), sharp cheddar cheese, an apple (Fuji, braeburn or Granny Smith), one lemon’s juice and zest, 1 tsp of olive oil, and butter. Slice the apples thinly and toss with lemon juice, zest, salt and pepper. Butter one side of two pieces of bread. Build your sandwich — butter on the outside — of cheese, apples, cheese. Grill on a pan or use a George Foreman grill like I did. I can’t quite describe how amazingly good this grilled cheese is. Forget tomatoes (my former staple). From now on I am using lemony apples. Trust me on this one. — Angela M.