The only place I have had this is when my mother made it when I was growing up. Now that my daughters have grown and married it is a favorite of theirs also.
3 Cups Brown Sugar 1 Can Carnation Milk
1/2 Cup Butter 1 Cup Creamy Peanut Butter
Bring Brown sugar, Butter and Milk to a boil and boil until soft ball stage. Remove from stove and stir in peanut butter. I usually add a little more peanut butter but you do not want to get it too dry. Pour out on a buttered dish and let cool. Cut into squares and enjoy.