Dr Oetker is hoping to increase its slice of the pizza market with two new ­on-pack promotions.

It is launching a six-month offer called Tuck In Stuff on Chicago Town Deep Dish pizzas, which gives consumers the chance to redeem codes online and claim prizes including Knork knife and fork utensils, pizza cutters and iPod docking stations.

Until the end of the year, the company is also running a promotion on its Chicago Town Takeaway pizza that gives consumers the chance to claim back the cost of the product.