Finely chop the rosemary needles and mix it together with the flour -mix ingredients in a bowl. Add olive oil and knead between fingers with flour mixture to form a crumbly dough. Add the pumpkin puree and 2 tbsp of ice cold water. Knead briefly until smooth.
Roll out the dough on a lightly floured surface or directly on a baking sheet into a circle, about 18 cm. Sprinkle with oatmeal and coarse chopped walnuts. Now carefully roll it out into a circle of about 20 cm and divide it into 8 cake pieces with a knife. Pull these a little apart.
Bake in a preheated oven at 180 degrees convection (top/bottom heat 200 degrees) for 15- 20 minutes. Let them cool on a cooling rack. They taste best lukewarm.