Caramel Chocolate Chip Cake

Ingredients:

2 c All-purpose flour
1 c Packed brown sugar
1/2 c Granulated sugar
1/2 c Semisweet chocolate chips, finely chopped
1/2 c Shortening
1 1/4 c Milk
3 ts Baking powder
1 ts Salt
1/2 ts Baking soda
1 1/2 ts Vanilla extract
3 Eggs
1 Caramel fluff frosting recipe

Directions:
Preheat oven to 350 degrees. Grease and flour a 13 x 9 x 2" rectangular baking pan. Beat all ingredients except Caramel Fluff in a large bowl on low speed for 30 seconds, scraping bowl constantly. Neat on high speed for 3 minutes, scraping bowl occasionally. Pour into pan. Bake until a wooden pick inserted in center comes out clean, about 40 to 45 minutes; cool completely. Frost with Caramel Fluff. Store in refrigerator.