Lemonade Pie

1 3/4 cups cold milk
2 (4 ounce) boxes vanilla instant pudding
1 (6 ounce) can frozen lemonade concentrate
1 (8 ounce) container nondairy whipped topping
1 graham cracker crust
lemon slices
                   
1. Pour milk into large bowl. Add pudding mixes, and beat
   with whisk for 30 seconds. Add lemonade concentrate,
   and beat with whisk for an additional 30 seconds. Stir in
   whipped topping, and pour filling into crust. Top with
   lemon slices. 
2. Chill several hours, until thick enough to slice.