Ingredients :
2 C plus 2 Tbsp flour
1/2 tsp baking soda
1/2 tsp salt
12 Tbsp unsalted butter,melted and cooled until warm
1 C packed brown sugar
1/2 C sugar
1 large egg plus 1 egg yolk
2 tsp vanilla
2 C coarsely chopped Twix Bars
Preheat oven to 325 degrees. Chop your Twix bar into 1/4 inch chunks.
Cut each bar in half lengthwise and then chop into 1/4 inch pieces width wise. In a bowl combine flour, soda and salt. Set aside. In your mixer blend butter and sugars together until combined. Beat in egg, egg yolk and vanilla. Add in dry ingredients and beat until just combined.
Fold in Twix Bar chunks. Bake for 13-16 minutes until light golden brown and edges start to harden but center is soft. Do not overbake.