Cinnamon Sugar Biscotti

Great with a coffee or just for a treat.

Preheat oven to 325f line 2 large baking sheets with parchment paper.

Mix flour , 1 1 / 2 teaspoons cinnamon , baking powder and salt in medium bowl to blend.

Using electric mixer , beat 1 cup sugar and butter in large bowl until fluffy.

Add 1 egg.

Beat well.

Add egg yolk.

Beat well.

Mix in vanilla , then dry ingredients.

Transfer dough to work surface.

Divide in half.

Shape each half into 9-inch-long , 1 1 / 2-inch-wide log.

Transfer logs to baking sheets.

Beat remaining egg in small bowl.

Brush logs with egg.

Bake until golden and firm to touch , about 50 minutes.

Cool on baking sheets.

Maintain oven temperature.

Mix 3 tablespoons sugar and 1 teaspoon cinnamon in small bowl to blend.

Using serrated knife , cut logs into 1 / 2-inch-wide diagonal slices.

Place biscotti , cut side down , on baking sheets.

Sprinkle 1 / 4 teaspoon cinnamon sugar over each biscotti.

Bake until pale golden , about 20 minutes.

Cool on racks.

all-purpose flour, ground cinnamon, baking powder, salt, sugar, unsalted butter, eggs, egg yolk, vanilla extract