These copycat Tim Hortons Peanut Butter Cookies have soft, chewy centers and tons of peanut butter flavor. They always seem to disappear from the menu, so I decided to try making them at home.
Preheat oven to 350°F. Line two baking sheets with parchment paper.
In a food processor, blend peanuts and flour until they're a fine powder (about 30 seconds).
In a stand mixer bowl, using the paddle attachment, beat together peanut butter, butter, sugar, salt, baking soda, baking powder, and vanilla on medium speed until the mixture is soft and light (about 3 minutes).
Add the beaten egg in two portions until well incorporated (if you add them all at once, the mixture may separate).
Mix in peanut flour on low speed, then add milk and continue mixing until a soft dough forms.
Bake for 16 minutes until the edges are crisp and the tops are starting to brown. Allow to cool on the baking sheet for at least 10 minutes to set the crumb.
Notes
Storage: These cookies can be stored in an airtight container at room temperature for one week.Make Ahead & Freezing: Chill dough for 30 minutes, divide into ziplock bags, refrigerate for a week, or freeze for six months. When ready to bake, allow it to soften at room temperature, then follow baking instructions.