Line an 8 X 8 baking dish with foil. Grease well and set aside. In a medium sized saucepan, combine butter, sugar, corn syrup and vanilla. Melt butter and liquefy sugar at medium heat, stirring continuously. Increase heat to medium high to reach a boil. Slowly add half and half, stirring vigorously, and reduce heat to a low rolling boil. Add salt and stir. Boil for 13-15 minutes until mixture reaches a soft ball candy stage*, stirring occasionally to avoid burning.
Remove mixture from heat and stir in 3/4 cup chopped peanuts. Stir to mix peanuts evenly throughout mixture. Pour into greased foil pan and allow to completely cool and solidify.
Once mixture has solidified, pull aluminum foil out of pan. Cut block with a sharp knife into 5 rows X 5 rows to make 25 candies. Shape candies into squares and place on wax paper or greased foil lined cookie sheet. Press thumb into middles of each square about 2/3 deep into caramel mixture. Fill each indentation with peanut butter until it just mounds over. Transfer caramels to the fridge to set while preparing the dipping chocolate.
Melt chocolate coating according to package directions. Once chocolate is smooth and ready to dip, take caramels from the fridge. Place one caramel at a time, peanut butter facing up, on a fork and dip into chocolate. Tap fork on edge of dipping bowl to remove excess chocolate. Gently set chocolate back on wax paper or foil to harden. Repeat steps with remaining caramels.
Melt butterscotch chips in a microwave safe dish at 50 percent power for 30 seconds. Remove and stir for at lease 30 seconds. Return to microwave and melt in additional 15 second intervals, stirring for at least 30 seconds in between, until chips are melted. Transfer mixture to a sandwich sized plastic bag. Cut a very small corner off the edge of the bag, just enough to squeeze a thin line of mixture through. Squeeze bag to drizzle melted butterscotch over truffles, one at a time, sprinkling with finely chopped peanuts after each drizzle.
Allow chocolate coating and butterscotch drizzle to harden. Package, deliver, and enjoy some for yourself.