Cream together shortening and sugars until smooth. Add eggs one at a time, mixing well after each. Mix in vanilla well. Fold in peanut butter and blend well.
Sift together dry ingredients. Add to batter 1/2 cup at a time mixing well after each.
Drop by teaspoon fulls onto an ungreased cookie sheet. Dip a fork in a small dish of flour and press criss cross fashion on top of cookies. Bake at 325 for 8-12 minutes depending on desired moistness or crunchiness.