medium bowl, mix together flour and sugar; blend in butter until crumbly. Press
into ungrease 13 x 9-inch (33 x 23 cm) pan, lined with heavy-duty foil. Spread
walnuts in one layer over dough.
Bake in 350 F (180 C) oven for about 20 to 25
minutes, or until walnuts are lightly toasted and base is lightly browned on
edges. Remove from oven; set aside. In medium saucepan, combine unwrapped
caramels and cream.
Warm over medium-low heat, stirring constantly, until
caramels melt. Immediately drizzle caramel mixture over nuts. Scatter chocolate
chips over top; let stand 2 to 3 minutes. Swirl through chocolate with knife;
allow to cool before cutting into bars.