Root beer Float Cookies

Now...THESE are big, soft, and worth making.  I would increase the extract as the root beer is a very faint 'at.the.end.of.the.bite' taste.  I will definitely be making these again and they were really enjoyed by the kids and friends! Who doesn't love root beer?

~Recipe~
1 cup butter, softened...Real butter
2 cups packed brown sugar
2 eggs
1 cup buttermilk
1 tsp. root beer extract or concentrate *I will increase to about almost 2 tsp* You can play with this.
4 cups flour
1 tsp. baking soda
1 tsp. salt

Frosting Ingredients:
4 cups powdered sugar (or icing sugar)
3/4 cup butter, softened
3 Tbsp. milk
1 tsp. root beer extract or concentrate *Again I will increase*

Directions: 
Preheat oven to 375º.
In a mixing bowl, cream butter and brown sugar. Add eggs, one at a time, beating well after each. Beat in buttermilk and root beer extract. It starts to smell really yummy right about now...don't let the strong smell deter you from adding more flavor. The concentrate is very strong smelling.
Combine dry ingredients; gradually add to creamed mixture. 
Drop by tablespoonfuls*I used an ice cream scoop to make them bigger, I have a teen boy, they like BIG cookies* onto ungreased baking sheets. Bake at 375º for 10-12 minutes or until lightly browned. Remove to wire racks to cool. 
In a mixing bowl, combine all frosting ingredients. Beat until smooth. 
Frost cooled cookies. Easy! Enjoy~