Minne di SantAgata Sicilian Ricotta and Chocolate Pastries

Name: Minne di Sant'Agata (Sicilian Ricotta and Chocolate Pastries)
Ingredients: For the filling and decoration:; 1 1/4 cups (10 1/2 ounces or 300 grams) fresh ricotta (sheep milk, preferably); 1 1/4 cups (160 grams) confectioners' sugar, divided; 1 1/2 ounces (40 grams) dark chocolate, chopped finely (or chips); 1 ounce (30 grams) candied citron or orange, chopped finely; 1 egg white (use the one leftover from making the dough); 1 tablespoon lemon juice; 6 candied cherries; For the pastry dough:; 2 cups (250 grams) flour; 1/2 cup (100 grams) sugar; 1/2 cup plus 1 tablespoon (125 grams) cold butter, chopped; 1 whole egg (60-gram egg or U.S. large size eggs); 1 egg yolk (save the white for the glaze)