Pie is the traditional way to feature pumpkin on the Thanksgiving menu, but during the Gilded Age pumpkin and other squashes alos found their way into other desserts,
Preheat oven to 350°F Grease* and flour two 9-inch round cakepans and set aside.
Beat butter in a large bowl with an electric mixer until creamy. Add granulated sugar, brown sugar, eggs, and pumpkin and mix well.
Sift together flour, baking powder, and baking soda. Add them alternately with milk to the butter mixture. Fold in walnuts and maple extract.
Pour batter into cake pans and bake for 30-40 minutes. Cool on wire racks for 10 minutes, then remove from pans to cool completely. Frost with maple butter frosting.
Maple Butter Frosting
Combine all ingredients in a large mixing bowl. Beat with an electric mixer until creamy, adding another tablesppon of milk if necessary to achieve a good speading consistency.