- 1 cup butter, softened
- 1 1/2 cups sugar
- 1 1/2 tsp. baking powder
- 1/4 tsp. salt
- 1 egg
- 1 tsp. vanilla
- 2 1/2 cups all-purpose flour
- 2 tsp. finely shredded orange peel
- 2 oz. unsweetened chocolate, melted and cooled slightly
In a large mixing bowl, beat butter with an electric mixer on medium to high speed for 30 seconds. Add sugar, baking powder, and salt. Beat until combined, scraping side of bowl occasionally. Beat in egg and vanilla. Beat in as much of the flour as you can with the mixer. Using a wooden spoon, stir in any remaining flour.
Divide dough in half. Stir in orange peel into one half of the dough; stir in melted chocolate into the other half of the dough. If necessary, cover and chill about 1 hour or until dough is easy to handle. Shape each half of the dough into a 10-inch long roll. Wrap each roll in plastic wrap or waxed paper. Chill about 2 hours or until firm.
Cut each chilled roll lengthwise in half, then cut each half lengthwise again - you will have 4 pieces of each roll. Reassemble into 2 rolls, alternating chocolate and orange quarters. Wrap and chill about 30 minutes more or until firm.
Preheat oven to 375 degrees. Using a sharp knife, cut dough into 1/4 inch thick slices. Place slices 1 inch apart on ungreased cookie sheets. Bake for 7 to 9 minutes or until edges are firm and bottoms are slightly browned. (Cookies will still be very soft to the touch - don't overbake!) Transfer to wire racks to cool. Makes about 60 cookies.