In a mixing bowl, combine warm milk, sugar, and yeast. Let it sit for about 5 minutes until frothy.

Add melted butter and egg to the yeast mixture and stir to combine.

In a separate bowl, whisk together 3 1/2 cups of flour and salt.

Gradually add the dry mixture to the wet ingredients, mixing until a dough forms.

Transfer the dough to a floured surface and knead for about 5-7 minutes.

Place the dough in a greased bowl, cover it with a kitchen towel, and let it rise for about 1 hour or until doubled in size.

After rising, punch down the dough and divide it into 12 equal pieces. Shape each piece into a ball.

Place the shaped dough on a baking sheet and let it rise again for about 30 minutes.

Bake in a preheated oven at 350°F for 15 minutes or until golden brown.

Brush the buns with melted butter right after baking for a glossy finish.