Melt chocolate chips and butter together in the microwave on high for 30 seconds, stir, heat for another 30 seconds, stir. Heat in 10 second increments thereafter until the chocolate is melted and smooth. Set aside.
Combine flour, baking powder, pudding mix and salt together in a small bowl. Set aside.
Beat sugars and eggs together until thick and creamy (5 minutes.)
Beat in vanilla and chocolate mixture.
Stir in flour mixture just until combined
Stir in toffee bits and pecans.
Refrigerate for 30 minutes.
Preheat oven to 350 degrees.
Line cookie sheets with parchment paper.
Scoop out 1/4 cup of dough, spaced 2 inches apart.
Bake for 14 minutes. Cool on sheets for 5 minutes before removing to cooling rack.