Sift the rye flour and all-purpose flour into a large bowl, add the salt, and mix.

Dissolve the dry yeast and honey in warm water and add to the flour mixture. Knead the dough.

Incorporate the chopped walnuts into the dough. Cover and let it rise in a warm place for 60 minutes.

Shape the risen dough into a round loaf and place it on a baking tray lined with parchment paper. Cover and let rise for another 30 minutes.

Score the top of the dough with a sharp knife. Bake in a preheated oven at 200°C (400°F) for 30-35 minutes.

Remove from the oven, let cool, and slice to serve.