Italian Sesame Cookies (Giuggiulena)

These Italian Sesame cookies are a classic.  They can be found in nearly every bakery in the northeast.
They are great for dunkin in espresso.

Ingredients;
2 cups unbleached flour
2/3 cup sugar
1 TSP baking powder
1/2 LBS unsalted butter, (2 sticks)
1 XLRG egg
1 TSP vanilla or almond extract
1 cup raw sesame seeds
1/2 cup milk

Directions:
PREHEAT OVEN 350.
Line a baking sheet with parchment paper.
Mix together the sugar and butter. Then add the egg and extract. Add the flour, baking powder and mix. Shape the dough like a meatloaf and refrigerate for about 2 hours for easy handling. Divide the dough in half. Cut thick slices and shape into one and a half inch rounds with a slight oblong shape. Brush with the milk and dip into the sesame seeds.
Bake sesame side up for about 15-20 minutes or until slightly brown.