Preheat the oven to 350 F. In a large bowl, whisk flour, sugar, cocoa powder, salt, and baking soda together. Add in melted butter, eggs, and vanilla extract and mix until smooth.
Spread the brownie batter into a greased 8-inch square baking dish. In a medium bowl, whisk together flour, salt, baking soda, and cinnamon. In a large bowl, mix together butter, sugar, and pumpkin puree until fluffy.
Add in the egg and vanilla extract and mix until smooth. Add in the flour mixture, and mix until it is fully combined. Top the brownie batter with cookie dough and bake for 25-30 minutes.