In a 1 1/2 quart casserole or Pyrex bowl, combine: 1 - 12 oz package chocolate chips, and 1 - 6 oz package peanut butter chips. Microwave on full power 3-4 minutes, stirring after 2 minutes and then every minute, until chips are melted. Peanut butter chips will still be in chunks when chocolate is melted. Use wooden spoon to stir and smash peanut butter chips. Heat from chocolate helps to melt them. If mixture seems dry and crumbly, add 1 Tbs. shortening. Stir in 12-14 oz salted Spanish peanuts. Drop by teaspoon on was paper. Chill.