Combine sugar, brown sugar, soft butter until fluffy; add peanut butter, vanilla and egg. In another bowl mix: flour, baking soda, salt, mix well and add chocolate chips. Mix to wet ingredients and mix until all is well blended.
Take small dollops and shape into 1" balls - place 2" apart on ungreased baking sheet. Dip fork in sugar and flatten balls lightly.
Bake 375°F for 6 to 9 minutes. Set on rack to cool.