Makes 1 loaf
Mix yeast, sugar and water.
Scald milk, add butter and salt. When cool, add yeast mix, egg and flour.
Knead briefly. Let rise until doubled in bulk in a warm place and knead again.
Shape in an oblong loaf. Let rise again in a draft-free warm spot until doubled in bulk.
Bake in a greased loaf pan (9×5×3) in a preheated 450° oven for 10 minutes. Lower heat to 350° and bake 40 minutes more.
Cool, slice in thick slices, and return to the warm oven to dry.