Mix the yeast, sugar and water together, leave it for 15 minutes.

Mix flour, yeast mixture and milk together, then knead the dough for at least 8 minutes, or until the dough is smooth and elastic.

Place the dough into lightly brushed bowl, cover with cling film and let it rest for at least 1 hour or the dough double its size.

Take out the dough, press the dough and release air. Divide the dough into 6 pieces, roll it, place it on lined baking sheet. Cover with cling film and let it rest for 45 minutes.

Place the dough into preheated oven at 180C, bake for 18 minutes.

Cut the bun into half, toast it and spread butter and add condensed milk on top. Enjoy!