Step 1: In a large bowl, combine flour, yeast, sugar, and salt.
Step 2: Add eggs and lukewarm milk, then mix until a shaggy dough forms.
Step 3: Knead the dough on a floured surface for 10 minutes until smooth and elastic.
Step 4: Gradually incorporate the softened butter, kneading for another 10 minutes until fully combined and the dough is shiny.
Step 5: Place dough in a greased bowl, cover with plastic wrap, and let rise in a warm place for 1-2 hours until doubled in size.
Step 6: Punch down the dough, shape into a loaf, and place in a greased 9×5-inch loaf pan.
Step 7: Cover and let rise again for 1 hour until the dough reaches the top of the pan.
Step 8: Preheat oven to 190°C (375°F). Brush the loaf with egg wash.
Step 9: Bake for 30-35 minutes until golden brown and an internal temperature reaches 88°C (190°F).
Step 10: Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.