Best Ever Chocolate Pudding Bars

Directions

1. Preheat oven to 325. Spray an 8 x 8 inch square baking pan with cooking spray. In a medium bowl, cream butter and sugar. Add in one egg yolk and vanilla and beat at medium speed till light and fluffy. Add in flour and salt and beat at low speed just till combined. Pour dough into prepared baking pan and chill.
2. When chilled, press into pan with floured fingers and press dough to 1/4 inches thick on bottom and sides of pan.
3. Extend up 1 inch of pan and refrigerateagain. For filling, mix together sugar and cornstarch in small mixing bowl. With electric mixer on medium-high, beat 6 yolks till light and fluffy. Add in cornstarch-sugar mix and mix on medium-high till combined. Add in vanilla, cream, chocolate and walnuts and blend on low, scraping bowl, whenever necessary, till combined. Pour filling into baking pan. Bake 1 hour till filling is set and golden. Refrigerateand cut into bars.