Pre-heat oven to 350 degrees. Line an 8 inch square baking pan with parchment paper. In a large mixing bowl, mix together butter, sugar, egg and vanilla. Then add salt, baking soda, flour and mix. Stir in white chocolate and Sahale Snack Mix, and pour into the baking pan. Bake for 25-30 minutes until browned and set. Cool. Cut into squares.