Warm bowl and flour. Crumble the yeast with a teaspoon of sugar; add 1/2 cup of scalded milk cooled until lukewarm. Let stand in a warm place to rise. To the rest of the scalded milk add the butter, sugar, salt, a little nutmeg and lemon. When lukewarm, add the beaten yolks of the 2 eggs; stir in the yeast and only enough flour to knead, until smooth and elastic. Cover closely and let rise until doubled in bulk. Cut dough, form into any desired shape, place in pans, let rise again until doubled. Bake 15 to 20 minutes in a moderate oven, 350F.