Hehe, great job reading this and I'm so happy you enjoy my posts @blackmox!

Ingredients

Cookies:
1 1/4 cups (2 1/2 sticks) butter, softened
1 egg 2 cups packed brown sugar
2 tablespoons maple syrup
1 1/4 teaspoons salt
1 teaspoon vanilla
1 teaspoon baking soda
1/4 teaspoon cinnamon
1/8 teaspoon pumpkin pie spice
3 1/4 cups flour
3 1/2 cups old-fashioned oats
Frosting:
1/4 cup (1/2 stick) butter, melted
4 cups powdered sugar
2 tablespoons milk
1 teaspoon vanilla extract
pinch of salt
Instructions

Preheat oven to 350 degrees F (180 C). Beat butter and brown sugar in a mixing bowl until creamed. Add syrup, egg, vanilla, salt, and spice. Mix in flour then oatmeal. Roll dough into 2 tablespoon sized balls, place evenly apart on parchment lined baking sheet, and flatten slightly with palm.
Bake for 8 - 10 minutes or until edges are golden. Remove and cool completely.
Whisk together ingredients for frosting in a medium bowl until smooth. When cookies are cool, use a knife to spread frosting between sets of 2 to make cream pies.