Mix the softened butter, salt, and brown sugar, and spices with a hand mixer on medium speed until thoroughly combined and creamy. Don’t whip until fluffy, it just need to be creamy.
Mix in flour just until dough starts to come together.
Next, roll out the craquelin choux to 1/16 – 1/8 inch thick on a piece of wax paper. Cover and freezer for at least 30 minutes.
To Make the Choux Pastry Dough
While craquelin is chilling, prepare the pate a choux according to the recipe directions.
Preheat oven to 400 degrees, and pipe the choux dough in 1-2 inch mounds (depending on how large you want them). Gently flatting the tips of the mounds so that they have a flat spot about the size of a dime on top.
Take the craquelin dough out of the freezer, and immediately cut out circles with a circle cutter to cover the tops of the choux mounds.
If you want the craquelin to cover the entire pastries when baked, make sure the circle are slightly larger than the diameter of the piped choux pastry.
Bake for 10 minutes at 400 degrees, then reduce the temperature to 350 and bake for 25-35 minutes, or until they are deeply golden brown.
If the craquelin is browning too fast, lightly cover with foil. Be careful though! Weight on the puffs can make them deflate, so keep the foil slightly arched over the puffs.
When the pumpkin cream puffs come out of the oven, place them on a cooling rack and allow to cool for two hours so that they can dry out more on the inside.
To Make the Stabilized Cinnamon Whipped Cream
Add gelatin to a small pot and add water. Let sit for 1 minute. Turn the burner onto low and heat the gelatin until dissolved. Do NOT continue to cook. Remove from heat and allow to cool.
Pour heavy cream into a stand mixer bowl that has been chilled. Begin whipping on medium high speed, and add the powdered sugar and cinnamon after 1 minute.
Once the whipped cream reaches soft peaks, slowly pour in the melted gelatin, and continue to whip until heavy cream has reached almost stiff or completely stiff peaks.
Slice pumpkin cream puffs in half and pipe in the whipped cream. Or alternately, poke a hole in the bottom of each cream puff and fill with the cinnamon whipped cream so that it’s not visible. Chill cream puffs in an airtight container for up to a week. You can also freeze them for up to a month.