Ingredients:
I preheated the oven to 170 degrees, fan-assisted. I rolled out the dough (you just need to roll out the bolti ) and then brushed it with walnut oil. I sprinkled it with cinnamon and icing sugar, then I grated the peeled apple on top. I crushed the walnuts in a mortar into small pieces, but not into a paste, and sprinkled this over the pastry. I rolled it up starting at the longer side, then cut it into 1.5 cm slices and placed them in a muffin tin. I baked them in the hot oven for 25 minutes.