I got this recipe from my American aunt. It is definitely a nofail
fudge and is soooo creamy.
2 cups brown sugar
2 cups white sugar
3/4 cup milk
1 small jar marshmallow cream (Fluff)
1 small jar crunchy peanut butter
Bring sugars and milk to a boil. Boil for 31/4 minutes (exactly). Have peanut butter and marshmallow turned out onto a plate since there is no time to waste. Remove sugar and milk from heat and quickly scrape marshmallow and peanut butter into hot mixture. Mix with beater. Pour into a greased 9x13inch pan and let harden.