In a medium bowl, combine sugar, yeast, and hot milk; stir to dissolve.

Whisk the egg. Add flour and salt, knead with a spatula, then hands until dough is elastic.

Incorporate softened butter into the dough thoroughly.

Form a dough ball, cover, and let rise for 1 hour.

Divide dough into 8 parts, roll each into a ball, cover, and let stand for 30 minutes.

Slightly flatten, then re-roll into balls, cover, and rest for another 30 minutes.

Fry in hot oil over low heat for 2-3 minutes each side.

Cool slightly, cut in half, fill with whipped cream and strawberries, sprinkle with sugar.