½ cup jam for filling, such as orange marmalade, strawberry, or chocolate
Directions
Add the flour, sugar, baking powder, salt, and egg to a food processor. Blend to combine the ingredients. Then, add the butter, orange zest, and orange juice, and pulse for a few minutes until a soft dough ball has formed.
Lay the dough on a cutting board, and divide it into 2 sections. Roll each section into a ball, wrap in plastic wrap, and place in the fridge for 1 hour.
Preheat the oven to 350 F. Take the dough balls out of the fridge, unwrap them, and let thaw for 10 minutes to soften. Roll each dough half out into a ¼-inch thick circle or rectangle.
Using a 3- to 4-inch round cookie cutter, glass, or lid, cut out 8 dough circles from each rolled-out dough half. Place them on 2 baking sheets that have been lined with parchment paper. Add 1 teaspoon of your choice of filling(s) to the center of each dough circle.
To shape the dough into triangles, bring the left side of the circle up to partially cover the filling, angling the dough to create a point at the top. Then, bring the right side over the meet the left, and press the dough together at the top to make a point. Fold the bottom flap up, position it under the right and left flaps, and pinch the corners to secure the bottom points of the triangle.
Bake for 10 to 12 minutes, or until the dough is golden brown. Let the cookies cool for 5 minutes on the baking tray, then for 10 minutes on a cooling rack before serving.