A healthy and beautiful way to celebrate summer!
Preheat oven to 350 Fahrenheit.
In a small pot heat the brown sugar. Pour over the bottom of a 7-inch springform pan.
Thinly slice the plums.
Press down the plums starting in the center and moving outwards.
In a mixing bowl, place eggs, sugar, vanilla, oil, milk and yogurt and combine together. Mix well with a hand whisk.
Add the two flours and continue to whisk.
Pour batter over the plums.
Bake the cake for 40-45 minutes or until a toothpick comes out clean.
Let the cake cool for 10 minutes before removing the springform. Place the cake plum side up on a cooling rack plum side up and carefully remove the bottom piece.
Sprinkle with powdered sugar if you wish.