Marbled Toffee Bars

3 cups quick-cooking oats
1/2 cup (1 stick) butter, (we recommend LAND O LAKES� Butter), melted
3/4 cup firmly packed brown sugar
1/3 cup light corn syrup
2 teaspoons vanilla extract
1/2 teaspoon salt
1 cup NESTL� TOLL HOUSE Premier White Morsels
1 cup NESTL� TOLL HOUSE Milk Chocolate Morsels
1/4 cup nuts, finely chopped

PREHEAT oven to 400� F. Line 13x9-inch baking pan with aluminum foil, extending ends over pan; grease foil.

FOR BARS:
COMBINE oats and butter in large bowl; mix until well coated. Add brown sugar, corn syrup, vanilla extract and salt; mix well. Press oat mixture firmly onto prepared pan.

BAKE for 12 to 16 minutes or until light golden brown. Sprinkle with morsels. Let stand 2 to 3 minutes until softened. Spread morsels over bar with metal spatula or knife for a marbled effect. Sprinkle with nuts.

COVER; refrigerate for 1 to 2 hours until chocolate is set. Lift bar to cutting board, using ends of foil as handles. Carefully peel off foil; cut into bars. Store tightly covered in refrigerator.