Gateau au Yaort
Update: Didn't have quite enough yogurt tonight so added a couple of tablespoons of peach yogurt, and substituted almond extract for the rum. It was good, didn't take much different. I forgot to sprinkle the top of the the cake with raw sugar before baking, which I did last time, and missed the sweet caramel crunchiness. It was a hit with our guests, nonetheless.