Flowers and Chocolate in one convenient package

I know I can't bring this cake to the office again without providing the recipe, so here it is:
Cooking Light's Texas Sheet Cake, using homemade yogurt instead of buttermilk, and this fudge recipe from the Cooking for Engineers website. Because this cake was for Bonnie's goodbye party, I modified the recipe by substituting two teaspoons of rosewater for the vanilla in the cake. I also pressed some dried rose petals into the frosting (Savory Spice Shop in Denver has several types; I chose the dark red ones from Pakistan).