Sugar-Free Frosty Lemon Pie
["9-inch pie crust, brushed with egg whites, baked and cooled", "1 2/3 c. sugar-free lemon yogurt", "2 packets Equal", "1 small pkg. sugar-free lemon gelatin (4 serving size)", "3/4 c. boiling water", "2 ice cubes", "1/2 c. ice cold fruit-sweetened lemon concentrate", "mint sprig or orange slice (to decorate each slice)"]
["Mix Equal into yogurt and set aside. Stir boiling water into gelatin powder until dissolved. Add ice cubes. Stir until melted, then stir in lemon concentrate. Finally, using a wire whip, whisk yogurt into gelatin mixture until smooth. Pour into pie crust. Refrigerate 2 1/2 to 3 hours (or place in freezer for no more than 30 minutes and then into refrigerator until ready). Garnish each pie slice with a mint sprig or orange slice."]
["pie crust", "sugar", "packets Equal", "sugar", "boiling water", "cubes", "lemon concentrate", "mint sprig"]