Sunday in Paris Chocolate Cake

I made Sunday in Paris Chocolate Cake from Dorie Greenspan's Baking Chez Moi for this week's Tuesdays with Dorie posting.
Inspired by a Paris pastry shop, Dorie's recipe uses an ingredient which is unusual in France - peanut butter.
The batter features both bittersweet or semisweet chocolate and cocoa along with peanut butter and chopped peanuts.
I chose to bake the cake in a square pan so that I could decorate it for Valentines Day.  To amp up the peanut butter flavour I replaced the heavy cream in the ganache with peanut butter.  The cake looks rustic and not at all Parisian, perfect for an at home celebration.