The Low-Calorie & Healthy Blueberry Cookies are low-fat, low-calorie, all-natural, yet buttery, crispy, flavorful and delicious!
First in a small pot bring the blueberries with one tablespoon of water to boil. Let boil for a few minutes and take off the flame. Cool and blend the blueberries. (TO SKIP THIS STEP SEE NOTE)
Whip together the butter, sugar and vanilla extract until fluffy. Add the blueberry puree and the egg whites. Mix until all the ingredients are incorporated.
Whisk together the flour and baking powder.
Mix the flour mixture and the blueberry mixture together until incorporated.
Take the dough out of the bowl and roll it on a cutting board into a log (approximately 12 inch long). Wrap the the dough log tightly in plastic wrap and put it in the freezer. Chill for at least 1 hour and up to 2 months.
15 minutes before you're ready to bake your cookies, preheat the oven to 350 F. Line a cookie sheet with some parchment paper.
Unwrap the dough from the plastic. If desired roll the log in some course sugar. (It jsut makes cookies prettier.) Slice the dough log with a sharp knife into 1/4 inch thick cookies. Place the cookies about 1 inch apart from each other on the cookie sheet.
Bake the cookies in the center rack of your oven for about 12-15 minutes until lightly browned. Cool on the wire racks.
NOTE: you can also use 3 oz store-bought blueberry puree.