Pre heat oven to 350°F. In a medium bowl combine flour, baking soda and salt. Set aside.
In a large bowl using an electric mixer on low speed, combine peanut butter, Crisco, granulated sugar, and brown sugar until creamy. Mix in the eggs and vanilla until creamy increasing the speed of the hand mixer if needed.
Add the dry ingredients to the wet ingredients a little bit at a time, mixing until well combined.
Set the cookie dough in refrigerator to cool; approximately 1 hour.
Scoop 1 tablespoon cookie dough and roll into ball shape. Roll the cookie ball in granulated sugar and place on cookie sheet about 1" apart. Press into the cookie dough with tines of a fork to make a crisscross pattern. Decorate with mini candy coated peanut butter candies on top of each cookie (if using).
Sprinkle with extra white sugar before baking if desired.
Bake for 10-12 minutes or until the cookies are browned around the edges and are no longer wet on top. Remove from the oven and cool baking sheet for 5 minutes on a wire rack. Remove cookies from baking sheet and continue to cool.