1 cup powdered sugar (3.5 ounces)
1/8 teaspoon salt
1 cup (2 sticks) cold butter or stick margarine, cut into ½-inch pieces
1 egg, beaten
1 1/2 teaspoons finely grated orange zest (from about 1 large orange)
1 to 3 tablespoons orange juice
Creamy poppyseed filling with raisins
1. Combine the flour, powdered sugar, baking powder and salt in a food processor fitted with a metal blade. Process briefly to blend. Scatter the butter pieces over mixture. Pulse the mixture just until it resembles coarse meal. Add the orange zest. Pour the beaten egg evenly over the mixture in the processor. Pulse again, scraping the sides down occasionally, just until the ingredients are blended.
2. Sprinkle with 1 tablespoon orange juice and pulse briefly until the dough begins to stick together but does not quite form a ball. If the dough is too dry to stick together, add another tablespoon juice and pulse several times to blend. If necessary, add the last tablespoon of juice 1 teaspoon at a time, pulsing after each addition.
3. Transfer the dough to a work surface and divide into 4 portions. With the heel of your hand, knead each portion lightly to blend. Using a rubber spatula, transfer each portion of the dough to a sheet of plastic wrap, form it into a fairly smooth flat disk and wrap tightly. Refrigerate it at least 3 hours or up to 3 days.
4. Remove the dough from the refrigerator. If it is very firm, let it soften for a few minutes at room temperature. Meanwhile, butter a baking sheet, or line it with foil and butter the foil.
6. Unwrap 1 quarter of the dough at a time. Push to form it into a rough circle. Tap it firmly a few times with a rolling pin to soften it and to begin flattening it. Roll it on a lightly floured surface with a lightly floured rolling pin, turning it often and flouring lightly as necessary, until it is about one-eighth-inch thick.
7. Using a 3-inch cookie cutter or a glass, cut the dough in rounds. Brush water lightly along the rim of each one. Put 1 teaspoon filling in the center of each. (Do not add extra filling, or it may come out during baking.) Pull up the edges of the round in 3 arcs that almost meet in the center above the filling, to form a triangular pastry with the filling showing slightly. Pinch the edges to seal them firmly.
8. Put the pastries on the greased baking sheet and refrigerate them. Push the trimmings gently together; wrap and refrigerate them.
9. Roll the remaining dough in 3 more portions and shape more hamantaschen. After refrigerating the trimmings at least 30 minutes, you can roll and shape them also. Refrigerate the shaped pastries for 30 minutes or up to overnight to firm the dough.
10. Meanwhile, heat the oven to 375 degrees.
11. Bake the hamantaschen until they are light golden at the edges, about 10 to 14 minutes.
12. Cool them on a rack, then store them in an airtight container.
Each of 3 dozen cookies: 128 calories; 2 grams protein; 14 grams carbohydrates; 1 gram fiber; 7 grams fat; 4 grams saturated fat; 21 mg cholesterol; 6 grams sugar; 27 mg sodium.