Preheat 170°C and grease a 9"x9" glass pan with butter or baking paper.
In a medium bowl add all of the ingredients except for the plums and gently mix them slowly until they combine into a batter (the batter will be fairly thick).
Pour the batter into the prepared pan and smooth the top, then insert the halves plums in any pattern you like making sure the cut side faces up with at least 1" between the plums.
Bake the cake for 35-45 minutes until the top has begun to color and a toothpick comes out clean when inserted. Dust with powdered sugar before serving.
0 servings