In medium bowl, crumble cookie dough; stir or knead in 1/2 cup of the pecans until well mixed and evenly combined. Press evenly in ungreased 9-inch square pan.
Bake for about 20 minutes until set and golden brown. Remove from the oven and cool for 30 minutes.
In a microwavable safe bowl, microwave caramels and milk uncovered on High 2 to 3 minutes, stirring every 60 seconds, until melted and smooth.
Pour evenly over the baked bars. Sprinkle with pretzels and remaining 1/4 cup pecans, pressing slightly into caramel. Sprinkle with salt.