Bloke kavla (bloke kavla)

Instructions

1. Mix the flour, salt and cold butter cut into cubes with your fingertips until you get a sandy texture.
2. Add the egg, vinegar and crème fraîche, then work just enough to form a smooth dough. Wrap and chill for 30 minutes.
3. Mix the ground walnuts, sugar, cinnamon, lemon zest, honey and rum or orange juice to make a moist but pliable filling.
4. Roll the dough out into a very thin large rectangle on a floured surface, about 35 × 45 cm.
5. Spread the walnut filling evenly over the dough, leaving a strip free along one long edge.
6. Roll up tightly from the opposite side, then wrap the roll in a floured cloth or baking paper.
7. Place the roll on a tray, brush with egg yolk mixed with milk and prick the surface with a fork.
8. Bake at 180 °C for 35 minutes, until the pastry is golden. Let it cool slightly, then slice and dust with icing sugar.