In a large mixing bowl, cream together the butter, sugar, and vanilla until light and fluffy, about 3-5 minutes. Add the eggs, one at a time, and mix until evenly combined. Add the flour, baking soda, cinnamon, nutmeg, and salt, beating until combined and the dough forms a ball.Generously flour your work surface. Divide the dough in half and flatten each half into a disk. Roll out the dough to 1/4 inch thickness. Make sure you are using enough flour or your dough will stick. Cut out the cookies into your desired shapes. Carefully transfer the cookies to a parchment lined baking sheet. Cover the baking sheet and place the sheet in the freezer, freeze until very firm, about 15-20 minutes. Roll out the leftover scraps, and repeat with the remaining disk of dough.Preheat oven to 350 degrees. Bake the cookies on the middle rack of the oven for 8-12 minutes (for soft cookies) or until just lightly golden brown. Do not over bake. Cool on the baking sheet five minutes and then transfer to a wire cooling rack to cool completely.To make the frosting. Add the butter to medium pot. Allow the butter to brown lightly until it smells toasted, about 2-3 minutes. Stir often. Remove from the heat and let cool 5 minutes. Whisk in the powdered sugar, 2 tablespoons water, the vanilla, and cinnamon until smooth, adding 1 tablespoon of water to think the frosting as needed. If the frosting gets too thin, just add a little more sugar and if it gets too thick, add a splash of water. The frosting should be thin enough to drizzle, but think enough to hold it's shape.Frost each cooled cookie. If making pumpkins, I used melted chocolate to draw on the pumpkin "leaves". Sprinkle lightly with cinnamon sugar. Keep cookies covered in an air tight container for up to 4 days.