A Little cookie history:
The Girl Scout Cookies had their earlist begings in the kitchens and ovens of girl scout members, with mothers volunteering as technical advisers.
The sale of cookies as a way to help finance troop activiteis began as early as 1917, five years after Juliette Gordon Law started the Girl Scouting in the United States. The earliest mention of a cookie sale found to date was that of the Mistletoe Troop in Muskogee, Oklahoma, which baked cookies and sold them in its high school cafeteria as a servie project in December 1917.
In July 1922, The American Girl magazine, published by Girl Scout national headquarters, featured an article by Florence E. Neil, a local director in Chicago, Illinois. Miss Neil provided a cookie recipe that was given to the council's 2,000 Girl Scouts. She estimated the approximate cost of ingredients for 6 to 7 dozen cookies, to be 26 to 36 cents.
In the 1920s and 1930s, Girl Scouts in different parts of the country continued to bake their own simple sugar cookies with their mothers. Thee cookies were packaged in wax paper bags, sealed with a sticker, and sold door to door.
AN EARLY GIRL SCOUT COOKIE RECIPE:
1 cup butter
1 cup sugar plus additional amount to sprinkle on top the cookie
2 eggs
2 Tablespoons milk
1 teaspoon vanilla
2 cups flour
1 teaspoon salt
2 teasoons baking powder
In a large bowl, cream the butter and the cup of sugar together. Then add the well beaten eggs, then milk, vanilla, flour, salt, and baking powder.
Refrigerate the dough for at least 1 hour.
Then roll the dough out, cut into trefoil shapes, and sprinkle sugar on top.
Bake in a 375 degree oven for approximately 8 to 10 minutes OR until the edges begin to brown.
Makes: 6 to 7 dozen cookies.

Give it a try and bake yourself a batch.