1 box krusteaz shortbread cookie mix
3/4 c unsalted butter, room temperature
1/3 c mini chocolate chips
1/3 c toffee bits
1/3 c crushed pretzels
1. Preheat oven to 350°F. Line a cookie sheet with parchment paper or silicone baking mats. If necessary, soften butter by microwaving 10-15 seconds on high power. Place cookie mix and butter in a large bowl. Use a hand mixer or wooden spoon (or a stand mixer) and mix until dough forms. Mix in chocolate chips, toffee bits, and crushed pretzel pieces.
2. Scoop dough according to desired cookie size, approximately 2 tablespoons, onto prepared cookie sheet. If you like a flatter shortbread cookie, you can flatten slightly with the palm of your hand. Bake 10-14 minutes, until bottoms are slightly golden brown. Cool on cookie sheet 5 minutes before removing to a rack to cool completely. Store in an airtight container.