Panellets (Catalan All-Saints Cookies)

1 . Stage

Place the potatoes in a small saucepan; cover with water and bring to a boil. Cook until the potatoes are tender; drain. Mash the potatoes with a fork. Allow to cool.

2 . Stage

Preheat oven to 425 degrees F (220 degrees C). Lightly butter a baking sheet.

3 . Stage

Combine the cooled potatoes and almonds. Slowly add the sugar while stirring with a wooden spoon. Stir in the lemon zest; continue mixing with your hands. Form the dough into 1-inch balls. Roll the balls in the pine nuts; brush with egg yolk. Form each ball into a crescent shape. Cover each cookie with cornstarch and then brush with egg white. Arrange cookies on the prepared baking sheet.

4 . Stage

Bake in preheated oven until lightly golden, 10 to 12 minutes.