- In a kitchen aid bowl add egg whites and salt  beat well. 
- At first it will be frothy like this. 
- Gradually add sugar and  beat until it is stiff. 
- Set aside  ¼ cup this sugar-egg-white mixture for frosting. 
- Add cinnamon, lemon juice and almond meal, to the rest of the  beaten egg white and 
- knead to a soft dough and chill the dough for 5 hours or overnight. 
- When you are ready for baking. 
- Roll out dough on a flat surface (it may be slightly covered with sugar), approximately 7 mm (0.3 inches) thick. 
- Cut out stars or other shapes and put them on a baking sheet covered with baking paper. 
- Add  1 teaspoon frosting  in the center of ( which you reserved earlier)  each cookies.Slightly spread towards the ends. 
- While preparing the cookies pre-heat oven to 300F(180C)  and  bake the cookies for about 15 minutes. 
- Make sure not to over bake as the frosting will turn into brown in color. 
- Let cool completely before serving.