Ali's Pumpkin Spice Cookies

I got this recipe from Kaitlin and Daron's stepmom. They taste good and are fluffy. (for some reason all my cookies deflate after they come out of the oven. Any suggestions on how to fix this?) I think next time I would use cream cheese frosting, I didn't really care for the icing.

2 1/2 cups all-purpose flour

1 tsp baking powder

1 tsp baking soda

2 tsp ground cinnamon

1/2 tsp ground nutmeg

1/2 tsp ground cloves

1/2 tsp salt

1/2 cup butter, softened

1 1/2 cups white sugar

1 cup canned pumpkin

1 egg

1 tsp vanilla extract

Icing:2 cups confectioners' sugar

3 Tbls milk

1 Tbls melted butter

1 tsp vanilla extract

1. Preheat oven to 350 degrees F; Combine flour, baking powder, baking soda, cinnamon, nutmeg, cloves, and salt; set aside

2. In a medium bowl, cream together the 1/2 cup of butter and white sugar. Add pumpkin, egg, and vanilla to butter mixture, and beat until creamy. Mix in dry ingredients. Drop on cookie sheet by Tablespoonfuls; flatten slightly

3. Bake for 15-20 mins in the preheated oven. Cool cookies, then drizzle glaze with fork

4. To make glaze: Combine confectioners' sugar, milk, 1 Tablespoon melted butter, and 1 tsp vanilla. Add milk as needed to achieve drizzling consistency.