Giant Ice Cream Sandwich with Chocolate Chips

Instructions

1. 1

   With the rack in the middle position, preheat the oven to 350°F (180°C). Butter the sides of two 8-inch (20 cm) springform pans with removeable bottoms. Line the bottoms of the pans with parchment paper.

2. 2

   In a bowl, combine the flour, baking powder, baking soda and salt.

3. 3

   In another bowl, whisk the brown sugar, sugar, mayonnaise, vanilla and eggs with an electric mixer until smooth. With the machine running on low speed, or with a wooden spoon, add the dry ingredients, then the chocolate chips. Mix for 1 minute or until smooth and creamy. Divide the mixture between the prepared pans.

4. 4

   Bake for 25 minutes or until the cookies are nicely golden but the centre is still slightly soft. Let cool completely, about 1 hour.