Soften the butter in a bowl until it becomes creamier. Add the sugar 2 to 3 times and whisk vigorously until a nice cream is created.
Separate the egg yolk from the white. Add the egg yolks to the butter-sugar mixture. Incorporate the siftedflour.
In another bowl, beat the egg whites at full speed with a pinch of salt. Beat until soft peaks form and no white liquid remains in the bowl.
Gently fold one-third of the whipped egg whites into the butter mixture to loosen the batter. Add the remaining whites and fold gently from the bottom upward until incorporated. Do not overmix, as you want to preserve as much air as possible.
Pour the mixture into the mold and bake for 40 minutes in the middle of the oven.Verify that it is ready by inserting a knife in the middle.Remove from the oven and wait 5 minutes prior to removing from the mold.
Kitchen scale, A kitchen scale is the easiest and most authentic way to prepare quatre-quarts because the weight of the eggs determines the weight of the butter, sugar, and flour.
Not all ovens are the same. After 30 minutes of baking, insert a knife in the middle, and if it comes out clean, the Quatre-Quarts is done. Most noteworthy is not worrying about falling when you open the oven door. We do not use baking powder.
Let it rest in the mold over a cooling wire rack for 5 minutes before removing it.
Set on a cooling rack. The cooling rack will help the bottom cool off, and air will circulate underneath it.
Giangi's Kitchen provides nutritional information, but these figures should be considered estimates, as a registered dietician does not calculate them.