1/2 cup walnuts
2 cups all-purpose flour
2 tablespoons granulated sugar
1 teaspoon salt
2 tablespoons cold butter, cut into pieces
3 tablespoons walnut oil
6-7 tablespoons cold water

Preheat oven to 350 F.

Spread walnuts in a pie pan and bake for 5 to 7 minutes, or until fragrant. Let cool.

Combine the walnuts, flour, sugar and salt in a food processor; process until the walnuts are finely chopped. Add butter and process until incorporated. Transfer to a large bowl.

Drizzle oil over the flour mixture. Use your fingertips to rub the oil into the mixture. One tablespoon at a time, add water and mix with a fork until dough is crumbly and holds together when pressed.

Divide dough into 2 pieces, 1 slightly larger than the other, and form each into a disk.

Wide sheets of parchment paper make rolling out dough even easier.

Source: foodnetwork.com