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1
In a large bowl, combine flours, sugar, polenta, baking powder and salt.
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2
Take the butter and rub it into the flour mixture with your fingers until it looks like fine crumbs.
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3
Stir in egg and olive oil and enough cold water to form a smooth dough.
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4
Next grease a 9-inch spring-form pan and press 2/3 of the dough evenly over the base and up the sides of the spring-form pan.
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5
Wrap the rest of the dough in plastic wrap and refrigerate it while you are preparing the filling.
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6
At this time you will want to preheat your oven to 350 degress F.
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7
Sprinkle the sugar and polenta into the pan.
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8
Cut your plums in half and remove the pits, and then place the halves cut-side down on top of the sprinkled polenta.
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9
Remove the remaining dough from the fridge and crumble it between your fingers, and then combine it with the oats.
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10
Sprinkle this mixture evenly over the plums and then sprinkle the raw sugar on top of that.
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11
Place in the oven and bake for 50 minutes until golden brown.
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12
Remove from oven and allow it to sit for approximately 15 minutes before you remove it from the spring-form pan.
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13
Once you remove it, leave it to cool on a wire rack.
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14
When serving, top slices with custard or cream.
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15
ENJOY!
