In a large liquid measuring cup, mix together yeast, sugar, and water; let stand until foamy, about 5 minutes.⏱ 5 min
Meanwhile, place milk and butter in a small saucepan and heat over medium heat until butter is melted. Remove from heat and let stand until mixture is lukewarm (110 to 115 degrees).
In a large bowl, mix together flour and salt. Add milk mixture to flour mixture. Stir eggs into yeast mixture and add to flour mixture; stir until a stiff dough forms. Cover bowl with plastic wrap and let stand in a cool place until doubled in size, about 1 1/2 hours.⏱ 90 min
Butter a Pullman loaf pan measuring 13 1/2 by 4 1/2 inches across the top and 12 3/4 by 3 3/4 inches across the bottom. Deflate dough by beating down with a wooden spoon for about 1 minute. Transfer dough to prepared loaf pan; cover and let rise until dough reaches top of pan, 1 1/2 to 2 hours.
Preheat oven to 375 degrees.
Uncover dough and transfer to oven; bake until bread is dark and golden on top and sounds hollow when tapped with your knuckles, 40 to 45 minutes.⏱ 45 min
Remove pan from oven and turn bread out onto a wire rack; serve warm or let cool, if desired.