Preheat oven to 350 degrees F.
Place hazelnuts on baking sheet. Bake until they're a shade darker and fragrant, about 10 to 15 minutes. Remove from oven and set aside to cool.
Lower oven to 325 degrees F.
or food processor
to coarse bits; set aside. Whisk
together flour, baking powder, and salt to blend; set aside.
Beat butter and sugar
together with a wooden spoon until smooth. Beat in egg
. Gradually beat the flour mixture into the butter
mixture. Add the chopped hazelnuts and mix until distributed evenly throughout.
Form into long cookies and place on greased cookie sheets. Bake until firm, about 15 minutes. Remove from oven and cool on racks.
In a saucepan
over lowest heat or in a double boiler
chocolate. Dip 1 end of cooled cookies
into melted chocolate. Place back on cookie sheet to harden.