Mix 1 cup brown sugar, 1/2 cup butter and 1 egg in bowl until fluffy, stir in 1/4 cup buttermilk, 1 teaspoon extract, 1 3/4 cups flour, 1/2 teaspoon baking soda, and 1/2 teaspoon salt, mix until smooth.
Cover and refrigerate for at least an hour.
Pre-heat oven to 400 degrees, grease cookie sheet with shortening.
Drop the dough by rounded teaspoonfuls about 2 inches apart on greased cookie sheet, bake for 6-8 minutes or until almost no impression remains when a cookie is touched lightly, immediately lift cookies unto a rack with a pancake turner.
Mix in bowl 2 cups powdered sugar and 1/3 cup of butter, stir in 1 1/2 teaspoons extract and 2 tablespoons hot water
Drizzle on cookies