1 c (1/2 lb.) butter or margarine, at about room temp
1 large egg, separated
3 c all-purpose flour
1 c granulated sugar
1 large egg
Directions
Step #1 In a bowl, with a mixer on high speed, beat butter & granulated sugar until fluffy.
Step #2 Add hard-cooked egg yolks, uncooked egg yolk, uncooked whole egg, & salt; beat on medium speed until mixed.
Step #3 Stir in flour, then beat until well mixed.
Step #4 Shape dough into 1-inch balls; cover with plastic wrap.
Step #5 On a lightly floured board, roll each ball under your palm into a 6-inch-long rope.
Step #6 On a 12- by 15-inch baking sheet (you'll need 3 total), twist each rope into a figure eight & press ends lightly together; space twists about 1 inch apart.
Step #7 Beat remaining egg white to mix; lightly brush over twists.
Step #8 Sprinkle top with pearl sugar.
Step #9 Bake in a 350º oven until twists are golden brown, about 20 mins (16 to 18 mins in a 325° convection oven).
Step #10 If using 1 oven, switch pan positions after 10 mins.
Step #11 With a wide spatula, transfer twists to racks to cool.