Family Tested & Approved
peanut butter, creamy
in a medium pot add the peanut butter, water and butter and bring to a boil. remove from heat.
in a separate bowl, mix together the sugar, brown sugar, flour, salt and baking soda with a fork. add to the peanut butter mixture.
add eggs, buttermilk and vanilla to the bowl and mix well.
stir well and pour into greased or parchment lined cookie sheet pan (jellyroll pan). bake for 15 minutes at 375.
for the frosting: in a small pot bring the butter, buttermilk, and peanut butter to a boil.
remove pan from the heat and add the powdered sugar and vanilla.
pour frosting over the warm cake.