Line an 8 x 8 inch square pan with parchment paper.
Melt chocolate chips with condensed milk in the top of a double boiler or in a bowl in the microwave. Stir until smooth. Remove from heat and stir in pecans and grated orange peel.
Pour chocolate mixture into prepared pan. Chill 2 hours, or until firm, and cut into squares. Store, covered, in the refrigerator.
