We’ve added egg yolks for a richer flavor and spiked the taste with a bit of cayenne. They both add color, too, to this sandwich bread, perfect for slicing and toasting.
Stir the yeast, warm water, and sugar together in a small bowl. Set the mixture aside until the yeast starts foaming, 5 to 10 minutes.
Combine the flour, salt, and cayenne in a large bowl. Stir in the yeast mixture, butter, egg yolks, and enough of the milk to form a mass of sticky dough. Let it stand for 10 minutes.