To make ravioli: Line fine mesh sieve with dampened cheesecloth. Add pumpkin puree and strain 1 hour. Transfer to bowl and stir in egg, cheese, breadcrumbs, sugar, salt and nutmeg.
Arrange six dumpling wrappers on work surface in single layer. Place 1 tablespoon pumpkin mixture in center of each and brush edges with water. Place second wrapper over filling, carefully pushing out any air bubbles then pressing edges to seal.
Transfer ravioli to baking sheet covered with parchment paper. Place sheet of plastic wrap over ravioli. Repeat with remaining wrappers and filling.
In KitchenAid Evergreen Design Series 6-Quart Ceramic Stockpot over medium heat, bring salted water to a gentle simmer
To make sauce: In KitchenAid Evergreen Design Series 3-Quart Ceramic Saucepan over medium-high heat, melt 1 tablespoon butter. Add shallots and cook, stirring occasionally, 1 minute. Add wine, bring to boil and cook until mixture resembles wet sand, 8-9 minutes.
Reduce heat to medium-low and whisk in remaining butter and heavy cream until melted. Stir in sage, chives and salt; keep warm, stirring occasionally.
To cook ravioli, add half to simmering water and cook, stirring gently once or twice, 3 minutes. Remove with slotted spoon and divide between two plates. Add remaining ravioli to pot and repeat dividing between remaining plates. Spoon sauce over ravioli and serve with additional grated cheese, if desired.