The pizza salad is made with shredded cabbage, coarse pepper and sometimes red bell pepper, slightly pickled (fermented) in vinaigrette for a few days. In general, Swedish pizzerias are private enterprises and not franchise, often owned as a family business by immigrants, but very seldom Italians. Of international restaurant chains only Pizza Hut is well established, although Vapiano has a few restaurants in Stockholm, and Domino's has been trying to establish itself in southern Sweden since 2008. Many pizzerias offer affordable (about 1-2 € total, or free with large order) home delivery in less than 30 minutes, and many are connected to an online ordering service. The take-away price of one standard size (30 cm) pizza is 5 to 8 € depending on topping, about double that for a "family pizza" of twice the size by weight, and about half that for a "children's pizza" (mostly served in restaurants). Pizza has become a staple food in Sweden (1,1 kg/year), although most people prepare their own food, as home cooking skills generally are good, and is largely considered as an acceptable occasional fast food alternative to a proper meal. Since the 1980s, a wide variety of pizzas ranging from fairly authentic Italian to American style to the mass-processed varieties are widely available, and pizzas are also commonly made at home with children using local substitutions such as bacon for prosciutto and cheddar for mozzarella. Dough bases vary widely from homemade scone doughs to thin Roman-style and thick American stuffed-crust types. The typical British high-street now has a variety of international Italian- and American-style pizza chains, including homegrown chains PizzaExpress, Strada, and Prezzo as well as Domino's, Pizza Hut, and Papa John's alongside much more authentic, independent, often Italian-run restaurants with wood-fired ovens, which can be found all over the country. Unique spicy varieties enjoy some popularity, including Chicken tikka masala or other curry toppings, chili pizzas, and a typical mid-range restaurant or takeaway will usually have versions of such standard "Italian-American" combinations as 'Hawaiian' (ham and pineapple), 'Pepperoni' (spicy salami), 'Meat Feast' (a mix of meats and salami), and 'Vegeteriana' options. Non-Italian varieties can be found too, particularly in larger cities such as London, for example, lahmacun called 'Turkish pizzas', or Alsatian 'Flammkuchen'.