2 tbsp. crushed ammonium carbonate (obtained from pharmacist, cooking type)
1 lb. butter or Crisco
1 lb. sugar (2 1/4 c.)
1 tsp. salt if Crisco used
1 lemon rind, grated (I use 2 rinds)
2 tsp. crushed cardamom seed or 3 of powder
1 c. chopped, toasted almonds
5 c. flour, approx.

Heat butter to boiling, remove from heat and stir in ammonia until dissolved. When somewhat cool add sugar, salt, almonds, lemon rind and cardamom seed. Add flour to make a stiff dough (enough to stick together into balls). Roll in balls and press flat. Bake in 325 degree oven for about 10 minutes or until very lightly turned (off- white). (6 generation favorite)

Avoid standing over the ammonia and butter.