Fruit Layer: Combine rhubarb, strawberries, sugar, ginger and flour and pour into a 8x8 inch baking square.
Topping: In a large bowl combine flour, sugar, baking powder, and salt.Cut in butter with a pastry cutter, or 2 knifes, until mixture resembles fine crumbs. Fold in sour cream until well mixed.
Drop dough in 6 spoonfuls over fruit--it will not cover fruit entirely.Sprinkle with second amount of sugar.Bake for 30-40 minutes at 375 degrees, or until topping begins to turn golden.
Serve warm with Ginger Creme Fraiche.
Ginger Creme Fraiche: Pour whipping cream into a chilled bowl and beat with an electric mixer until soft peaks begin to form. FOld in sour cream and ginger syrup and mix well. Refrigerate until ready to serve.
To Freeze: After cobbler has cooled, wrap with tinfoil, label and freeze for up to 2 months. Ginger Creme Fraiche may be frozen in a freezer container or made fresh at serving time.
To serve: Thaw both in fridge overnight. If desired warm Creme Fraiche before serving.