Melt-In-Your-Mouth Potato Muffins

These aren’t muffins in the American “breakfast cake” sense. They’re small yeast-raised rolls in the tearoom tradition, with mashed potatoes folded into the dough for a famously tender, almost shaggy crumb. The powdered sugar dusting on top tips them into sweet-bread territory, somewhere between a dinner roll and a doughnut.

The mashed potato is the engineer here. The starch retains moisture so the rolls stay soft for days longer than a standard yeast roll, and the potato’s natural sugars feed the yeast for an extra-vigorous rise.

The “spongelike” first rise (yeast, water, potatoes, and sugar) is essentially a poolish or sponge starter. Don’t rush it. Let it get visibly bubbly and aerated before adding the rest of the ingredients. That’s where the flavor depth comes from.

Use leftover mashed potatoes if you have them, but make sure they were mashed plain (no butter, milk, or seasoning). Loaded mashed potatoes throw off the dough hydration.

The butter-brush and powdered sugar finish go on hot, right out of the oven. The butter melts in immediately, the sugar clings and starts to dissolve into a faint glaze.

Kitchen Tips

• Modern yeast packets (about 2 ¼ tsp active dry) substitute for the cake yeast 1:1.
• The dough should feel softer and stickier than a standard bread dough. Resist the urge to add extra flour; the high moisture is what makes these tender.
• A small biscuit cutter (1½ to 2 inches) gives the classic size; cut close together to minimize re-rolling, which can toughen the dough.
• Best eaten the day they’re baked, but they freeze well wrapped tight for up to a month.

Variations

• Add a teaspoon of cardamom to the flour for a Scandinavian-inspired flavor.
• Brush with a thin powdered-sugar-and-milk glaze instead of dusting for a stickier, more doughnut-like finish.
• Stuff with a small piece of dark chocolate before the second rise for a hidden-treasure version.