In a large bowl blend sugars with electric mixer at medium speed. Add butter and beat well, scraping sides of bowl as needed. Add eggs and orange extract, and beat at medium speed until light and fluffy. Stir in the flour mixture and chopped chocolate until just mixed. Bake for 22 to 24 minutes until cookies are slightly brown along the edges.
Transfer cookies to wire racks to cool.
Store in airtight container. Makes about 3 dozen cookies. All rights reserved.