Plum Delicious: Damson Plum Custard Tart

Directions

1. 1
   Preheat oven to 375F.Using a food processor, pulse together the flours and salt until combined.
2. 2
   Add the butter, and pulse about 5-6 times, or until the mixture is coarse and crumbly.
3. 3
   Add the sour cream and process until the dough come together into a ball.
4. 4
   Transfer the dough ball to an ungreased 10-inch tart pan with a removable bottom. Using your hands, pat the dough evenly into the bottom and all the way up the sides of the dish to make a shell.
5. 5
   Bake the tart shell in the preheated oven for 15 minutes or until the surface of the crust looks dry and just barely golden-brown.Set the crust aside to cool on a wire rack for 10-15 minutes, while you prepare the filling.Lower the oven temperature to 350F.In a small bowl, stir together 2 tbsp of sugar with cinnamon, and sprinkle onto the par-baked tart shell.Pit the plums using a cherry pitter or a sharp knife, and then slice in half lengthwise. Arrange the plums on the cooled crust, cut-side down.In a medium-sized mixing bowl, whisk together the eggs, sour cream, remaining sugar, and flour and beat until smooth.
6. 6
   Pour the mixture over the plums.
7. 7
   Place the tart pan on a baking sheet and bake for about 1 hour, until the surface of the custard is set and a glossy golden colour.
8. 8
   Transfer the tart pan to a wire rack to cool completely before slicing up and serving.