Brownie Ice Cream Sandwiches

1 c. flour ¼ t. baking soda ¼ t. salt ¼ c. butter 1 ½ c. semi-sweet chocolate chips 2/3 sugar 2 eggs 1 t. vanilla 1 qt. your favorite ice cream flavor Assorted toppings: chopped nuts, sprinkles, chocolate morsels,…