Line cookie sheet with parchment paper. Set aside.Crumb Topping
Mix all the crumb ingredients together in a medium bowl and cut together with a pastry cutter or a fork until evenly mixed. Chill while making cookie dough.Cookies
In a large mixer, mix together butter, pumpkin and both sugars for 1-2 minutes on medium speed, until combined and creamy.
Add in Pumpkin pie spice, eggs and vanilla and continue mixing until evenly combined.
Turn mixer to low and mix in baking powder, salt and flour, mixing until dough comes together evenly.
Scoop cookies out, using a cookie scoop and place on lined cookie sheet.
Make an indentation in the center of the cookie dough. Scoop at least 1 Tablespoon of Crumb Topping into the center of the dough pressing lightly to stick.
Bake cookies for 9-10 minutes, or until edges start to get golden.
Remove from oven and allow to cool for about 5 minutes on cookie sheet, then move to a cooling rack
Glaze
Whisk together the powdered sugar, butter and milk until a glaze forms. You may need to increase or decrease the amount of creamer to get the correct consistency. Lightly drizzle over the cookies once they are cool.