Walnut Toffee Triangles

Yield:	48 Servings
Categories:	Cookies, Chocolate, Nuts

1	c	Toasted walnuts
1/2	lb	Unsalted butter; room temp
1 1/4	c	Firmly packed brown sugar
2	lg	Egg yolks
1	ts	Pure vanilla extract
2 1/4	c	Flour
1/2	ts	Salt
1	lb	Semisweet chocolate; chopped into 1/4", pieces