Preheat oven to 350 degrees.
Puree blueberries in a blender and combine all ingredients in a large bowl until well mixed.
Knead dough into ball and roll onto a floured surface 1/4 inch thick and cut with cookie cutter of your choice.
Bake on a lightly greased cookie sheet for 20 to 30 minutes until slightly browned.
Allow to cool.