Rice Krispies 4- Layer Bars

I got this recipe from a teacher and tried it tonight.  It was delicious.  Hope you enjoy

24	48	INGREDIENT:
¾C	1½C	Butter, softened
¾C	1½C	Brown Sugar
1	2	Egg Yolk
1¼C	2½C	Flour
2 C	4 C	Rice Krispies®, divided
14 oz	28 OZ	Vanilla Caramels (about 48)
3 T	6 T	Milk
2 C	4 C	Semi-Sweet Chocolate
½ C	1 C	Pecans, toasted/coarsely chopped

DIRECTIONS:

1.  In a large bowl combine butter & brown sugar; stir in egg yolk. 

2.  Stir in flour & 1 cup of RICE KRISPIES. 

3.  Spread mixture into 13x9 baking pan lined with foil. 

4.  Bake at 350º for 18-20 minutes or until light brown.

5.  In a medium microwave-safe bowl combine caramels & milk. 

6.  Cook, uncovered, at medium (50% power) for 4-6 minutes, stirring every 2 minutes, until melted & smooth. 

7.  Spread melted caramel atop crust layer.  Chill until firm. 

8.  In a medium bowl place chocolate morsels; cook, uncovered, at medium (50% power) for 2-3 minutes, stirring once until melted & smooth.

9.  Spread half the chocolate mixture over caramel. 

10.                   Sprinkle with 1 cup of the cereal & pecan pieces. 

11.                   Drizzle remaining melted chocolate evenly over cereal mixture. 

12.                   Let stand until chocolate is set.