This is a family version of a traditional Scandinavian recipe. They are not sweet, and they are wonderful with a cup of joe.
For the cookies
Gather all your ingredients
Grind the walnuts
Mix the butter, sugar, and salt until it is creamy.
Add ground walnuts
Mix until well combined.
Fold in the flour until it forms a dough. Near the end you can use your hands to form the dough ball. Then cover with plastic wrap and store in the fridge for at least 2 hours (overnight is better).
Prehear oven to 150°C (300°F)
These cookies are baked at a low heat and will melt in your mouth.
The dough might be a little dry, so when you form the cookie balls it would be good to slightly press them. Make each cookie slightly smaller than a ping-pong ball. When the cookies bake they will hold their shape, so you can place them tightly together.
Bake for 45-60 minutes, until they are browned on the bottom.
After baking and while the cookies are still warm, place the cookies in a bag with powdered sugar to coat.
These cookies store well in a sealed container. Separate each layer of cookies with waxed paper. If you live in a humid climate, you can freeze the cookies so that the powdered sugar does not dissolve.
Cool completely before storing.
Before serving you can coat again with powdered sugar if desired.
You can use a rotary cheese grater or a mouli-grater to grind the walnuts:
You can also use a food processor, but it will not have the same texture.