Heat oven to 400 F. In a large bowl, mix brown sugar, butter and shortening. Stir in 1 3/4 cups flour, the oats, salt, and baking soda. Reserve 2 cups oat mixture, press remaining oat mixture in ungreased 13x9 inch pan.
In a large bowl, toss apples and 4 Tbsp. flour, spread over mixture in pan.
Carefully soften Jimmy's Caramel dip in pan of hot water. Pour evenly over apples. Sprinkle with reserved oat mixture, press lightly.
Bake 25 to 30 minutes or until topping is golden brown and apples are tender. For 36 bars, cut into 6 rows by 6 rows while still warm.
Serving Size 36
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.