Heat oven to 325º
Beat cream cheese, butter and sugar with an electric mixer on med speed until well blended. Add flour, baking soda, and grated orange peel, mix well.
Shape into 8x2” log, Cut log into ¼” slices. Place on ungreased cookie sheet. Bake 15-18 min or until edges begin to brown. Cool on wire rack.
Melt chocolate chips with orange juice and liqueur in microwave or on stove over low heat. Stirring until smooth. Dip cookies halfway into frosting to coat half of the cookie, set on wire rack to set.