Add water, salt, vinegar, flour, and the soft butter into a mixing bowl and mix it with a dough hook until it is combined and smooth.
Place it in the fridge for 30-60 minutes.
Sprinkle flour on the kitchen counter and roll out the dough into a rectangle about one cm thick. The rectangle should be elongated.
Cut thin slices of the cold butter and distribute them on 2/3 of the dough.
Now fold the dough into three layers.
Place it in the fridge for 15 minutes. The butter must not become too warm.
Roll out the dough again to about one cm thick and repeat the process of folding it three times.
Place it in the fridge again for 15 minutes.
Repeat, roll out the dough, and fold three times.
Place it in the fridge again for 15 minutes.
Repeat, roll out the dough, and fold three times.
Place the dough in the fridge for about an hour. Again, the idea is to make the dough cold so the butter does not melt out.
Roll out the dough to a half cm thickness, and it’s a good idea to do this with half of the dough first.
Use cutters, they can be anything from a cup/glass to similar items, to get round vol-au-vents.
Cut out approximately 8-9 cm round pieces.
Find a smaller cutter of about 6-7 cm to press lightly down into the above pieces - just so you come 1/3-1/2 way down. Be careful not to press all the way through.
Brush the surfaces of your vol-au-vents (not the edges).
Place them on a baking sheet with parchment paper (or dusted with flour) and bake them in a conventional oven for about 19-21 minutes at 200 degrees Celsius (392 degrees Fahrenheit) regular oven.
Remove them from the oven and place them on a rack.
When they have cooled down a bit, use a spoon to scrape out the "insides"/middle, so you get a "bowl" for the filling.
I served my vol-au-vents with these
chicken in asparagus.
They can be frozen and you can easily make your vol-au-vents well in advance and then just warm them up right before serving, just like you know from tartlets.