Mix shortening, sugar, egg, molasses and water and mix thoroughly.
Stir dry ingredients together and blend in.
Chill dough.
Heat oven to 400F
Drop dough by teaspoon about 2 inches apart onto a lightly greased baking sheet.
Bake for approximately 8 minutes or until almost no imprint is left when lightly touched.
While slightly warm, frost with lemon icing.
To prepare the lemon icing, mix together 2 1/2 tbsp. softened butter, 1 1/2 C. powdered sugar and 2 tbsp. lemon juice.