1 small potato, boiled and mashed (~100 g) — her softener; it's what keeps them pillowy and fine-crumbed
150 ml warm milk (high hydration — the dough will feel soft and a little sticky, that's normal)
1 egg
40 g sugar
1 tsp instant yeast
1/2 tsp salt
30 g softened butter (added after the gluten is developed)
Filling
Sliced cheese (quick-melt), 1 slice per roll, folded into quarters
Topping
Softened butter, for brushing
Powdered milk + sugar (roughly equal parts), for dusting
Directions
Make the dough: mix flour, sugar, yeast, salt, egg and warm milk into a shaggy dough, then knead (stand mixer or by hand) until smooth, elastic and the gluten is well developed. ONLY THEN work in the softened butter and the mashed potato — the potato is her softener (a Korean potato-bread idea) and is what gives that signature cloud-soft crumb. Keep it soft and slightly sticky; resist adding much flour.
First rise: cover and let rise until doubled, about 1 to 1.5 hrs. (She skipped an overnight ferment here and just floured her surface to handle the wet dough; a cold overnight proof adds flavor if you have the time.)
Shape: divide into even balls (she made about 12). Flatten each into a small oval, lay a folded quarter-slice of cheese in the center, then roll and seal into a log, pinching the seam shut so no cheese escapes.
Proof the shaped rolls on a lined tray until puffy, about 30–45 min.
Bake gently so they stay pale and SOFT: she uses top heat with little or no bottom heat and pulls them while still white — just cooked through, not browned (think Mary Grace's cloud-white rolls). Roughly 160–170C / 325–340F for ~12–15 min. Don't overbake.
Cool completely. This is the secret: the rolls must be fully cool with no steam before you top them, or the dusting goes gummy and won't coat evenly.
Finish: brush each cooled roll all over with softened butter, then roll and dust generously in the powdered-milk-and-sugar mix until fully coated.
Wrap each in wax paper, Mary Grace style. She serves them with a cup of hot chocolate.
Method and technique transcribed from @jessestrellachoi's viral reel — it's a story/technique video with no on-screen measurements, so the quantities above are a standard enriched potato-dough starting point; what's faithfully hers are the mashed-potato softener, the gentle pale bake, and dusting only once fully cooled. From Home Notes with Jesse on Instagram.
