Wrap in plastic wrap and refrigerate 30 minutes or more. Remove dough and let soften a bit.
Preheat oven to 350 degrees.
Divide dough into four equal pieces and flatten each piece into a circle shape with your hands. Place between two pieces of parchment paper. On a large flat surface, roll dough out between the parchment paper sheets to create a circle, about 1/8-inch thick. If it’s perfect, good for you. If not, that’s fine.
Using a knife or pizza cutter, cut like a pizza into 8-12 pie-shaped wedges. On the wide end, add a scant teaspoon of apricot jam. Roll up toward the point and place on a baking sheet lined with parchment.
To make chocolate or cinnamon-nut, sprinkle those ingredients evenly over the rolled dough then proceed to roll up as above.
Beat an egg and brush over the tops. Bake until beginning to brown, about 20-30 minutes. Let cool a bit, and sprinkle, if you wish, with powdered sugar.