1/3cupunsalted buttermelted (dairy free butter works as well , I tested this with earth balance)
2large eggs
6-12plums (depends on the size) pitted and cut into halves or quartersI used 6 larger plums and made 24 quarters or the original recipe calls for 12 smallish purple Italian purple plums, halved
1teaspoonor cinnamon and sugar for sprinklingabout 3/4 tsp of sugar + 1/4 tsp cinnamon
Instructions
Heat oven to 350°F
Melt butter in a medium mixing bowl
Whisk in sugar
Whisk in eggs one at a time
Fold in flour, salt and baking powder mixing until just combined
Spoon batter into a lightly ungreased 9-inch springform pan and smooth the top (if you do not have a spring form pan you can use a regular 9 inch cake pan with parchment paper)
Arrange the plums, skin side up, all over the batter, covering it
Sprinkle the top with cinnamon and sugar blend
Bake until cake is golden and a toothpick inserted into a center part of the cake comes out free of batter (but of course not plum juice), about 45 to 50 minutes
Cool on rack
Note: Serve warm or at room temperature. The cake is also excellent served cold after chilling in the fridge overnight.