Ingredients
Dough for single-crust pie4 cups sliced fresh plums (about 8)2 tablespoons hazelnut liqueur, optional 1/2 cup sugar1/4 cup all-purpose flour1/4 teaspoon saltTOPPING:1/2 cup packed brown sugar 1/3 cup all-purpose flour1/4 cup finely chopped hazelnuts, toasted3 tablespoons cold butter, cubed
Preparation
On a lightly floured surface, roll dough to a 1/8-in.-thick circle; transfer to a 9-in. deep-dish pie plate. Trim crust to 1/2 in. beyond rim of plate; flute edge. Refrigerate 30 minutes.
Preheat oven to 375°. Toss plums with liqueur if desired. Mix sugar, flour and salt; add to plums and toss to coat. Transfer to crust.
For topping, combine brown sugar, flour and hazelnuts; cut in butter until crumbly. Sprinkle over plum mixture.
Bake until crust is golden brown and filling is bubbly, about 45-55 minutes. Cool on a wire rack.
