Preheat the oven to 350-degrees.
Line two baking sheets with parchment paper.
Cream together the butter and sugars in a large mixing bowl.
Beat in the eggs and vanilla.
Sift in the flour, salt, baking powder and soda and mix well.
Finally, fold in the chocolate chips and Heath Pieces.
Drop by rounded tablespoonfuls onto an ungreased cookie sheet. (Or use a nifty little cookie scoop - I love those things!)
Bake for 9-10 minutes until the edges are light brown.
Remove to a cookie rack to cool.
Store leftovers in an airtight container or resealable bag.