-
Combine and mix the butter, baking soda, cardamom, and salt.
-
Slowly add and mix in the brown sugar.
-
Beat in the eggs.
-
Combine the flour and cream of tartar and mix in slowly.
-
Chill dough for 3-4 hours, or until it is firm enough to work with.
-
Make 1/2-inch balls of dough and place on an ungreased cookie sheet. Press each cookie with a fork to create a criss-cross pattern.
-
Bake for 10-11 minutes. Be careful not to over-cook. Cookies should still "deflate" a little when poked; they will firm up as they cool.
-
Cool on a wire rack and store in an air-tight container.
-
They are best when served while they're still a little bit warm.