1ST LAYER:

1 c. all-purpose flour
1/2 c. (1 stick) butter, melted
1/2 c. pecans

Mix together, pour into 9x13-inch pan. Bake at 350°F for 15 minutes and let cool.

2ND LAYER:

12 oz. (1 1/2 pkgs.) cream cheese
9 oz. Cool Whip
1 c. powdered sugar

Mix together and spread over cooled crust.

3RD LAYER:

3 c. blueberries
1 1/4 c. sugar
2 tbsp. lemon juice
1/4 tsp. salt
1/4 c. water
3 tbsp. cornstarch

Cook above ingredients until thick. Spread over cream cheese. Cool 6 hours before serving.