Maine Blueberry Pie with Crumb Topping

Directions

1. Preheat oven to 400°. Unroll pie crust into a 9-in. cast-iron skillet or deep-dish pie plate; flute edges.
2. In a large bowl, combine the blueberries, sugar, flour, cinnamon and, if desired, thyme and lemon zest; toss gently. Spoon into crust; dot with butter.
3. In a food processor, cover and process cookies until coarsely chopped. Add the oats, brown sugar, butter, flour, salt and cinnamon; process until crumbly. Sprinkle over berry mixture.
4. Bake until crust is golden brown and filling is bubbly, 45-55 minutes. Cover edges with foil during the last 15 minutes if necessary to prevent overbrowning. Cool on a wire rack. If desired, serve with whipped cream.