An excellent balance of crispy and chewy, these cookies are a delicious treat. The use of brown sugar gives it hints of molasses flavoring, while buttermilk icing tops it all off, forming a comforting delight.
In an electric stand mixer, cream the butter and brown sugar until light and fluffy. With the mixer running on medium-low add the eggs one at a time, allowing each to incorporate. Add the maple extract and buttermilk, mix to combine. Add the flour, baking soda, baking powder, and salt. Mix until the dry ingredients are combined with no remaining streaks of flour.
16 tbsp (2 sticks) unsalted butter, 2 cups light brown sugar, 2 large eggs, 1 cup buttermilk, 1 tsp maple or vanilla extract, 4 ¼ cups all-purpose flour, 1 tsp baking soda, 2 tsp baking powder, ½ tsp kosher salt
Using a 2-ounce cookie scoop, place cookies on parchment-lined baking sheets. Bake in preheated 350°F oven until puffed and just set in the middle, 10-12 minutes. Remove and cool on the pan for 5 minutes. Finish cooling on rack. When the cookies are cool spread one tablespoon on each cookie and serve.
For the frosting
Melt butter over medium heat. Continue to cook until the foaming subsides and butter turns a brown nutty color, 6-8 minutes.
8 tbsp (1 stick) unsalted butter
Remove the butter from the heat and whisk in powdered sugar, 1 tbsp heavy cream, and vanilla extract. Whisk and add more cream as needed for a smooth frosting.
2 cups sifted powdered sugar, 1-3 tbsp heavy cream, 1 tsp maple or vanilla extract