M&M Giant Chocolate Chip Cookie Cake

INGREDIENTS

2 1/2 cups

all-purpose flour

1/2 tsp

baking soda

1 tsp

salt**

4 oz

butter, preferably unsalted

1/2 cup

shortening**

1 cup

packed light brown sugar

1/2 cup

granulated sugar

large eggs

2 tsp

vanilla

bag semi sweet regular or miniature size chocolate chips (2 cups)

regular size bag (about 1.5 oz) plain M&M’s or, if you live in the UK, smarties