4 1/2 c. Quaker Oats, uncooked
3/4 c. butter, melted
1 tbsp. vanilla
1 (12 oz.) pkg. semi-sweet chocolate pieces
2/3 c. chopped nuts
1 c. packed brown sugar
1/2 c. dark corn syrup
1/2 tsp. salt
2 tbsp. shortening

Heat oven to 450 degrees. Grease 15 x 10 inch pan. Combine oats, sugar, butter, corn syrup, vanilla, and salt; mix well. Firmly press mixture into pan. Bake 12 minutes, or until mixture is brown and bubbly. Cool completely.

In saucepan over low heat, melt chocolate and shortening, stirring constantly until smooth. Spread evenly over oat base, sprinkle with nuts. Chill until set, cut into bars.