Being American, i love choc chip cookies, especially these ones!
here's a recipe we use all the time.
 you will need:
125 g ( 4 oz) unsalted butter, softened
1 1/4 cups tightly packed brown sugar
1 teaspoon vanilla essence
1 egg, lightly beaten
1 1/2 cups plain (all purpose) flour
1/2 teaspoon baking powder
a pinch of salt
1 1/2 cups chocolate chips

here's what to do:
preheat the oven to 180 degrees, 350 Fahrenheit. place butter and sugar in a bowl and beat until light and creamy. add vanilla and egg then stir to combine. stir in the sifted flour, baking powder and salt until just combined. fold through chocolate chips.
place spoonfuls of cookie mixture on a greased and lined baking tray, allowing room for spreading. cook for 15  to 20 minutes, until they turn pale gold. allow to cool on the tray for 5 minutes before placing biscuits on a wire rack to cool further. makes 16.
BON APPETIT, COOKIE FANS!!!!!!!!!!

recipe courtesy of: 

Bill's Sydney Food,

by Bill Granger, published by Murdoch Books, in the year 2000