Maine Potato Donuts

These are the classic Maine potato donuts, the kind you’d find at a small-town diner counter or church bake sale up north. Cold mashed potato is the secret ingredient, mixed straight into the dough where it adds moisture and a tender, almost cake-like crumb that regular flour-based donuts can’t match.

The potato also acts as a natural barrier against grease absorption. Donuts made with potato simply soak up less oil during frying, which is why they stay moist for days instead of going stale and greasy by the next morning. It’s a trick New England bakers have known for generations.

A full hour of chilling before rolling and cutting is non-negotiable. Cold dough holds its shape under the donut cutter and fries up with crisp, well-defined edges. Warm dough sticks to everything, distorts when cut, and falls apart in the fryer. The 375°F (190°C) oil temperature in the directions is the sweet spot for crispy outside and cooked-through inside.

Pro Tips

• Use mashed potatoes with no added butter or salt. Pre-seasoned mashed potatoes throw off the flavor balance.
• Make sure the potato is completely cold. Warm potato melts the shortening and creates a greasy dough.
• Use a deep-fry thermometer to maintain 375°F (190°C). Even 25 degrees off either way ruins the texture.
• Drain on a wire rack rather than paper towels. Paper traps steam and softens the bottoms.

Variations

• Toss warm donuts in a cinnamon-sugar mixture immediately after frying for the classic finish.
• Glaze with a powdered sugar and milk drizzle while still slightly warm for a bakery-style coating.
• Add the zest of one lemon or orange to the dough for a subtle citrus brightness against the ginger.