Cream Butter & Sugars: Beat butter, peanut butter, granulated sugar, and brown sugar until fluffy.
Add Wet Ingredients: Mix in egg and vanilla.
Combine Dry Ingredients: Whisk flour, baking soda, and salt separately. Add to wet mixture until just combined.
Fold in Mix‑Ins: Stir in chocolate chips and pretzel pieces.
Scoop Dough: Portion onto lined baking sheet using a cookie scoop.
Chill Dough: Refrigerate for 30 minutes for thicker cookies.
Bake: Bake at 350°F (175°C) for 10–12 minutes until golden but soft in the center.
Cool: Let cookies rest on sheet for 5 minutes, then transfer to rack.
Presentation Tip: Press extra pretzel pieces and chocolate chips on top before baking for a bakery‑style look.
Expert Tip: Slight underbaking ensures chewy centers once cooled.