Method

• Preheat oven to 180°c
• Cream the 3/4 cup sugar and butter
• Add the flour, baking powder, eggs, and salt and beat well
• Place in a 9 or 10 inch ungreased spring-form pan
• Note: The batter will be thick
• You'll have to spread it out
• Cover the top with the plums, skin side down
• Mix the cinnamon and remaining sugar and sprinkle over the top
• Bake for 40-50 minutes until centre comes clean
• Remove and cool to room temperature or serve warm (my preference) and with vanilla ice cream