In a small bowl, whisk together the flour and baking soda; set aside.
Preheat oven to 450 degrees. Crush cookies in a food processor, pulsing until smooth crumbs.
I made these for the Seattle Bake Sale for Share Our Strength organized by Frantic Foodie (thanks Keren!). I had so much fun making pies in jars that I figured this was the perfect opportunity to bake something else in jars. This time I used half-pint wide mouth jars, a nice size for a bake sale. (Half pint jars washed and drying.) I used the blueberry cobbler recipe from Baking Illustrated .