Add flour all at once and stir vigorously with a spatula until dough comes together (1-2 minutes)
Continue cooking and stirring until a film forms on the bottom of the pot (4-5 minutes)
Transfer dough to a stand mixer bowl with paddle attachment
Mix on low speed for 4-5 minutes to let off heat and steam
Add eggs one at a time, fully incorporating each before adding the next
Chef Dominique cracks them all into a bowl and pours from that
You may not need all the eggs—stop when the dough falls slowly in ribbons when lifted
Transfer batter to the prepared piping bag
Pipe and bake
Pipe into desired shapes on the parchment-lined sheet:
Cream puffs: 11⁄2" rounds, 1" apart
Éclairs: 5" long strips, 1" apart
Rings: Pipe concentric circles using an 8" pan as a guide
Brush with egg wash
Bake at 375°F for 25-40 minutes, rotating pan halfway through
They're done when golden, light to the touch, and hollow in the center
Let cool completely before filling
Notes
The number of eggs needed can vary. The dough should be thick but fluid enough to pipe. To check consistency, stick a spatula into the dough and lift it high - it should fall slowly in ribbons.