Preheat your oven to 375.
Mix the Crisco, peanut butter, brown sugar, milk, and vanilla in a large bowl until it is well blended.
Add egg, mix until well blended.
Mix flour, salt, and baking soda in another bowl. Add to the peanut butter mixture a little at a time until blended.
Stir in chocolate chips.
Drop onto baking sheets by spoonful. Flatten with a fork.
Bake for 7-8 minutes.