Preheat oven to 350 degrees and line a large baking sheet with parchment paper or a silpat liner.
Cream butter and sugars until light and fluffy. Add eggs and vanilla until well combined. Slowly add flour, baking soda, salt and pudding mix. Stir in chocolate chunks and butterscotch chips until just combined.
Scoop dough onto prepared baking sheet with cookie scoop about 1 inch apart. Bake for 12-15 minutes, until baked through. Remove and let cool for 10 minutes before removing. Serve warm or room temperature.