-
Preheat oven to 350 degrees and grease a 24-cup mini muffin tin with baking spray. Set aside.
-
Beat butter, granulated sugar, and brown sugar together until well combined (using a standing mixer, hand mixer, or by hand).
-
Add in the egg, and mix until combined.
-
Add in vanilla extract, baking soda, and salt, mixing until combined.
-
Next, add in graham cracker crumbs and flour. Mix until well combined.
-
Using a 1” cookie scoop (about 1 Tbsp) disperse dough evenly between the muffins cups.
-
Bake for 10 minutes, or until the tops are lightly golden and the centers have risen (once you take the cookie cups out of the oven, the centers might sink a bit, which is normal).
-
Immediately, press centers down to form a cup shape (I used a Tbsp to do this). Allow to cool completely.