FILLING:

1 box graham crackers
3 1/2 c. milk
2 (3 oz.) boxes vanilla pudding (instant)
12 oz. Cool Whip

ICING:

2 sqs. semi-sweet chocolate
2 tbsp. butter
1 tsp. vanilla
3 tbsp. milk
1 1/2 c. powdered sugar

Make pudding with 3 1/2 cups milk. Blend Cool Whip in and let stand 5 minutes. Layer graham crackers, 1/2 pudding, graham crackers, remaining pudding, graham crackers. Melt chocolate. Add remaining ingredients together. Pour icing over last layer of graham crackers spreading thinly. Refrigerate. May be made up to 48 hours ahead.