-
Preheat the oven to 400 degrees F.
-
Add crust ingredients to a medium mixing bowl. Mix until all ingredients are moist. Pour the crust mixture into the tart pan. Press into one even layer over the bottom and sides of the tart pan using your hands.
-
In a separate medium mixing bowl, mix together the plums, corn starch, sugar, salt, lemon, and ginger. Pour the fruit filling over the crust. Arrange in one even layer. Dot the top of the fruit with the cold butter.
-
Bake the tart in the oven for 30-40 minutes until the crust is deeply golden. Check during the last ten minutes to make sure the top edges do not burn. Cool completely before slicing.