Sheet Pan Chocolate Chip Cookie Bars

1 cup butter
1 1/4 cups brown sugar
3/4 cup sugar
1 Tbsp. vannilla
2 eggs
2 3/4 cups flour
1 tsp. baking soda
1 tsp. salt
2 1/4 cup mini semisweet chocolate chips, divided

1.  Preheat oven to 350 degrees
2.  In a large bowl, cream together butter, brown sugar and sugar.
3.  Add vanilla and eggs and combine
4.  Fold in flour, baking soda and salt
5.  Mix in 2 cups of minichocolate chips
6.  Spray a sheet pan with nonstick cooking spray and spread cookie dough out evenly in pan
7.  Sprnke remaining 1/4 cup chocolate chips on top
8.  Bake for 20-25 minutes or until middle is set up and edges are golden brown
9.  Let cool and cut into squares