Pulverize freeze dried strawberries to a powder with a small food processor or a clean spice grinder. Pass through a sieve to strain out seeds.
In a medium bowl, whisk flour, powdered sugar and salt together.
In a large bowl, beat butter until light and fluffy. Add freeze dried strawberry powder and vanilla extract. Beat until well combined.
Add flour mixture and beat just until dough comes together. Fold in mini chocolate chips.
Divide dough into two portions and form into disks. Wrap with plastic wrap and refrigerate for at least 1 hour or up to overnight.
Line two large cookie sheets with parchment paper. On a lightly floured surface, roll dough to 1/4-inch thickness. Alternately, you can roll dough between two sheets of parchment paper. Cut cookies into desired shapes. I used a 4-inch cat cookie cutter.**
Place cookies about 2-inches apart onto prepared cookie sheets. To prevent excessive spreading, refrigerate cut cookies for 30 minutes prior to baking, especially if your dough becomes warm as you work with it.
Preheat oven to 325ºF. Bake until cookies are slightly puffed and edges barely start to turn light golden brown, about 12-14 minutes. (Smaller cookies will need a shorter baking time.) Let cookies cool on cookie sheet for 3 minutes then transfer to cooling rack to cool completely. Decorate as desired.