1/2 cup butter, softened
1 1/2 cups packed light brown sugar
1/2 cup milk
2 eggs
3 teaspoons vanilla extract
1 cup sifted all-purpose flour
1 teaspoon baking powder
Preheat the oven to 425 degrees F (220 degrees C).
In a medium saucepan over medium heat, combine butter and brown sugar. Cook in a 1/2 inch water until bubbles form in the butter mixture. Remove from heat, allow to cool to lukewarm. Stir in milk, eggs and vanilla. Mix together fine. Pour into cookie sheet.
Bake for 6 to 8 minutes in the preheated oven. Remove from cookie sheet to wire rack. Carefully press cookie into center of each cookie. Cool completely on wire rack. Dust with powdered sugar.