Put sugar and cardamoms along with 1/4 cup of walnuts in a grinder jar and grind them to a powder. Keep aside.
Take a bowl and by using electric beater, whisk the butter untill creamy. In case you don't have electric beater, you can use wire whisk also. In 2 to 3 minutes using electric beater, butter will turn fluffy and creamy.
Add grinded sugar & walnuts mixture into a bowl.
Whisk them again to mix well.
Now add wheat flour, chopped walnuts, baking soda and salt. Skip salt if the butter you are using is already salted.
With the help of your hand, start bringing everything together into a dough. Remember, don't knead the mixture but only bring it together.
Add a very little of milk in case the mixture is not binding together. We only need to add about 2 tsp of milk for making a dough.
Make small lemon size pieces of the dough. We could made 18 pieces.
Now roll each piece into a ball by rolling them between your palms one by one.
Arrange all balls on a baking tray lined with greased butter paper or parchment paper. See, keep distance in each ball as they will spread a little on baking.
Take 2 pinches of crushed walnuts and press gently on the top of ball. Repeat the same for all balls. Don't put much pressure otherwise balls may break.
Place the tray in refrigerator for 30 minutes.
After the said period, bake @160°C in a preheated oven in the middle rack with both the rods on for 25 to 30 minutes.
Once done, take the tray out and let Cookies cool down completely.
Walnut Cookies are ready.
Enjoy.
Notes
Instead of cardamoms, you can add vanilla essence.
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