Galette aux pommes de terre berrichonne: laminated Berry potato pastry
The Berrichon galette aux pommes de terre is a laminated pastry, not a grated-potato pancake. Dry mashed potato is worked with wheat flour, drained faisselle and egg yolk to form the base dough. A block of butter is then enclosed and the dough is rolled and folded repeatedly, building the layers that make the baked exterior crisp while the potato-enriched centre remains tender.
Moisture control starts before the dough exists. Floury potatoes are peeled, boiled until tender, drained thoroughly and mashed without milk or butter. The mash is spread out and cooled for 45 minutes until no steam remains. Mixing flour into hot, damp potato would make the dough sticky and would warm the lamination butter before the folds even begin.
The lamination uses six single turns arranged in three pairs, with a 30-minute refrigerator rest after each pair. The final sheet is rolled to 7–8 mm, cut into exactly 10 rectangles and brushed with a measured yolk wash. Clean cut edges matter: compressed or egg-smeared sides can seal layers that should lift in the 190 °C oven.


