In a large mixing bowl, combine the bread flour, sugar, and salt.

In a separate bowl, mix the yeast with warm water (around 110°F) until it's foamy, about 5-10 minutes.

Add the sweetened condensed milk, milk, and melted butter to the foamy yeast.

Gradually pour this liquid mixture into the dry ingredients and knead the dough until smooth and elastic, about 8-10 minutes.

Shape the dough into a ball and place it in a greased bowl. Cover with a kitchen towel and let rise until doubled, about 1 hour.

Punch down the dough, transfer it to a floured surface, shape it into a loaf, and place it seam-side down in a greased loaf pan.

Cover the loaf pan with a kitchen towel and let it rise again for 30 minutes; preheat your oven to 350°F (175°C).

Once risen, bake the loaf for 30-35 minutes until golden brown and hollow when tapped.

Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.