Lynette's Chocolate Chip Cookies

1 3/4 c. shortening
1 c. white sugar
1 c. brown sugar
4 eggs, well beaten
4 c. flour
2 tsp. baking soda
2 tsp. salt
1 tsp. vanilla
12 oz. chocolate chips

Cream shortening and sugars together, then add beaten eggs. Sift together dry ingredients. Add to creamed mixture and mix well. Add vanilla and chocolate chips. Bake at 375 for 8-10 minutes. Makes 4-6 dozen.