This special episode from 2007 certainly exists and aired - it's referenced in several articles and reference materials about the show. This database contributor, however, can't find any specifics about what foods the episode was about.
The second Dotch Cooking Show special to air after the "final" episode in 2006. Note: While I know this special is from 2012, I can't find the specific air date. This one is a total guess.
Ten don Chef: Ryoji Hamamoto Special Ingredient: Anago from Taima, Nagasaki Prefecture Oyakodon Chef: Kouou Sugiura Special Ingredient: Game fowl from Shinbashi, Tokyo
Hayashi rice Chef: Jun Hida Special Ingredient: Beef from Erimo, Hokkaidō Omurice Chef: Naoki Saito Special Ingredient: Kinuko's "Bun-bun Tomato" Ketchup from Tomioka, Gunma
Ramen with soy sauce (Shōyu) soup Chef: Katsumi Yoshioka Special Ingredient: Black bean soy sauce from Yuasa, Wakayama Prefecture Ramen with salt (Shio) soup Chef: Shinji Horiuchi Special Ingredient: Hot spring salt from Kotakara island, Kagoshima Prefecture
Gyoza special Chef: Kozo Kawai Special Ingredient: "Kurogoma Rayu" brand chili pepper sesame oil from Hishikari, Kagoshima Garlic chives and pork liver stir fry special Chef: Katsumi Yoshioka Special Ingredient: "Kita no nira" garlic chives from Shiriuchi, Hokkaidō
Katsudon Chef: Nobukatsu Hashimoto Special Ingredient: Okida's Black Pork from Okuchi, Kagoshima Curry rice Chef: Naoki Saito Special Ingredient: Kanetake Curry powder from Chofu, Tokyo
"Gomoku" style Fried rice Chef: Kozo Kawai Special Ingredient: Charcoal-roasted barbecued pork from Himeji, Hyōgo Chinese-style donburi Chef: Shinji Horiuchi Special Ingredient: "Red Diamond" bamboo shoots from Haguro, Yamagata
Barachirashi (Edomae style chirashizushi) Chef: Kazuki Kondo Special Ingredient: Wild horse mackerel (shimeaji) from Miyakejima, Tokyo Hitsumabushi style unagi bowl Chef: Tetsuya Kawamoto Special Ingredient: Wild eel (iri unagi) from Satsuma, Kagoshima
Dan dan noodles Chef: Akira Yokota (横田 彰) Special Ingredient: "Taka no tsume (falcon's talon)" chili peppers from Osaka Hiyashi-chūka Chef: Shinji Horiuchi Special Ingredient: "Golden" vinegar from Yoronjima, Kagoshima Prefecture
Maguro medley Dishes: Otoro nigiri sushi, tekkadon, grilled tuna kama (gill meat), otoro teriyaki, negima-jiru tuna and green onion soup Chef: Kouou Sugiura Special Ingredients: Wild tuna from the Ibiza coast,[3] "Maruiwa" brand wasabi from Izu, Shizuoka Beef medley Dishes: "Shimofuri (frost)" beef nigiri sushi, tataki style beef, stewed beef tongue, beef sirloin donburi Chef: Tetsuya Kawamoto Special Ingredients: Fukushima ranch black-hair wagyū beef from Ajisu, Yamaguchi, homemade butter from Kamui, Hokkaidō
Bulgogi Chef: Shinji Horiuchi Special Ingredient: Sanchu lettuce from Choshi, Chiba Genghis Khan barbecue Chef: Naoki Saito Special Ingredient: "South Down Hoggett" from Shintoku, Hokkaidō
Gōyā chanpurū Chef: Kozo Kawai Special Ingredient: "Abashi" bitter melon (gōyā) from Tomigusuku, Okinawa Pork and kimchi stir fry Chef: Katsumi Yoshioka Special Ingredient: Yasumoto's kimchi from Kawasaki, Kanagawa
Fish Burger vs Bagel Sandwiches - Nakazawa Yuko
Sanuki Udon Chef: Sei Mitsuzono Special Ingredient: Chikuwa from Kanonji, Kagawa Morioka Reimen Chef: Akira Yokota Special Ingredient: Fresh reimen noodles from Morioka, Iwate
Meat Sauce vs Napolitan Spaghetti - Yaguchi Mari Spaghetti with meat sauce Chef: Tatsumune Nagasaku Special Ingredient: "Teppen" brand tomatoes from Kōchi, Kōchi Spaghetti with Napolitan sauce Chef: Masato Wakebayashi Special Ingredient: Wiener sausages from Kudamatsu, Yamaguchi
Takoyaki Chef: Ryoji Hamamoto Special Ingredient: Aji brand octopus from Aji, Kagawa Yakisoba Chef: Nobuaki Obiki Special Ingredient: Yakisoba noodles from Musashikoyama, Shinagawa, Tokyo
Sweet and sour pork Chef: Masaru Nakagawa Special Ingredient: "Kakuida" brand genmai black vinegar from Fukuyama, Kagoshima Ebi Chili (Shrimp in chili sauce) Chef: Kin'ya Komoda Special Ingredient: "Kanoko" brand spiny lobster from Naha, Okinawa
Beef cutlet Chef: Naoki Saito Special Ingredient: Sunflower oil from Nanko, Hyogo Sauteed pork chop Chef: Jun Hida Special Ingredient: "Wine-ton" brand pork from Enzan, Yamanashi
Katsuo (Japanese bonito) Chef: Nobukatsu Hashimoto Special Ingredient: "Modori-katsuo" off the Kesennuma, Miyagi coast Sanma (Pacific saury) Chef: Sei Mitsuzono Special Ingredient: "Blue blade (青刀 Seitō)" Pacific saury off the Kushiro, Hokkaidō coast
Matsutake-infused rice Chef: Hiroyuki Ozawa Special Ingredient: "Hemlock (米栂 Beitsuga)" matsutake from Mount Fuji Uni and Ikura donburi Chef: Ryo Sugiura[2] Special Ingredient: "Ginsei" salmon roe from Erimo, Hokkaidō
Wontonmen (Wonton Ramen) Special Ingredient: Shiba shrimp of the Toyohama Sea Chashumen (Roasted Pork Ramen) Special Ingredient: Fuji Aschig Grazing Pig
Salted Grilled Salmon Special Ingredient: Alaskan King Salmon Miso Mackerel Special Ingredient: Matsuwa Mackerel
Hamburger Steak Special Ingredient: Kokiran Eggs Tonkatsu (Breaded Pork Cutlet) Special Ingredient: Egg Oil
Panko Fried Oysters vs Cream Croquettes - Kago Ai Kaki-Fry (Panko Fried Oysters) Special Ingredient: Akasaki Toka Oysters Cream Croquettes Special Ingredient: Raw Milk
Omu-hayashi (Omelette covered hashed beef) Special Ingredient: King Pearl Champignon Mushrooms Katsukare (Curried Breaded Pork) Special Ingredient: Raw Milk Yoghurt from Aizu
Nikuman Special Ingredient: Chinese "Marbled" Cabbage Curry Buns Special Ingredient: "Cinnanosweet" Cinnamon/Tsugaru apple hybrid
Salty Chankonabe Stew Special Ingredient: Longtooth Grouper Kimchi Stew Special Ingredient: Chinese Cabbage Kimchi with fresh shrimp
Cleopatra Meal Special Ingredient: "Yukireitake" Mushrooms, Hogget Yang Guifei Meal Special Ingredient: Yacon Root
Musashi Noodle Shop Ramen Special Ingredient: Salt, Miso, Soy Combo Nakamura Ramen Special Ingredient: Ise Shrimp
Italian Style Ebichiri Bowl (Shrimp in chili sauce) Special Ingredient: Solleone Tomatoes, Kuruma Prawns Chinese Style Katsukare Bowl (Curried Breaded Pork) Special Ingredient: "Saiboku Golden Pork"
Beef Curry Special Ingredient: Urausu "North Farm Stock Mini Tomato Bottle" (Juice) Sauce Fried Rice Special Ingredient: Iwate dried shiitake mushrooms
Chef Toshi Yoroizuka's "Salon de Dessert" Special Ingredient: Nacional "Arriba" Cocoa from Ecuador Chef Koichi Izumi's "Salon de The Cerisier" Special Ingredient: Four Chocolates: Legato, Fortissima, Maracaibo, Callebaut W2
Oden Special Ingredient: Nihonbashi Kanmo Hanpen (Fish Cakes) Yakiton (Grilled Pork Skewers) Special Ingredient: Taiki Apple Grassland Pork
Yuichi Kimura Special Celebrity Guest Chef Eiji Bando Special Celebrity Guest Chef
Ginger Pork Meal vs Sauteed Pork Liver Meal - Tsuji Nozomi Ginger Pork Meal Special Ingredient: Suminoi Shuzo 10 y.o. Mirin, Okita Kurobuta black pork, Hachiro ginger Sautéed Pork Liver Meal Special Ingredient: Super Golden Pork Liver
Hakata Gourmet Special Ingredient: ? Nagoya Gourmet Special Ingredient: Rare Handmade Miso
Musashi Noodles "Three Kingdoms" Ramen Special Ingredient: Yoronjima Salt Chef Morisumi's Chabuya Noodles Special Ingredient: Mongolian Rock Salt, Arita Bowl Chef Furuya's Nanetsutei Noodles Special Ingredient: Wakinosawa Wild Boar
Chef Hiromi Yamada of "Ristorante HiRo" (Pork Dumpling Bowl) Special Celebrity Guest Chef Chef Toshio Tanabe of "Ne Quittez pas" (Grilled Hamaguri Don) Special Celebrity Guest Chef
Japanese Meal Special Ingredient: Canned Sardines Western Meal Special Ingredient: Whole Grain Pasta
Nostalgic "Chuka-Soba" Ramen Special Ingredient: Chashu, menma, spinach, onion, seaweed Memories of Rice Curry Special Ingredient: Pork, Potatoes, carrots, onion, C&B Curry
Tomio Umezawa's Chinjao Rosu (Beef Bamboo Stir Fry) Special Ingredient: Fukuoka Kinmei Moso Bamboo Shoots Hiroyuki Amano Special Ingredient: Tokyo Udo (Aralia Cordata) from Tachikawa
Kudan Ikaruga Restaurant's "Brand New Tokyo Soy Sauce Ramen" Special Ingredient: Yamashin White Soy Sauce from Hekinan Setagaya Restaurant’s "Ramen Zero" Special Ingredient: Akkeshi Clams
Restaurant Omiya's Cream Croquette Bowl Special Celebrity Guest Chef: Katsuo Omiya Szechwan Restaurant's Chinese Chili Chicken Bowl Special Celebrity Guest Chef: Kinya Komoda
Gyoza Special Ingredient: "Yakuzen" Medicinal Chili Oil from the Ogasawara Islands Kushikatsu (Deep Fried Skewers) Special Ingredient: "Wandafuru" Sauce from Amagasaki
Korean Gourmet Special Ingredient: "Nakagen" Chinese Cabbage Kimchi from Nagoya Vietnamese Gourmet Special Ingredient: Cilantro Leaves from Yachimata
Hokkaido Gourmet Special Ingredient: "Red Bokke" Okhotsk Atka Mackerel Okinawa Gourmet Special Ingredient: Nakajin Agoo Pork
Seafood Curry Special Ingredient: Atyidae Shrimp from Kii Eggplant and Ground Beef Curry Special Ingredient: Large "Tamage-Nasu" Eggplant from Hagi.
Nantsuttei Restaurant's Salt Tonkotsu Ramen Special Ingredient: Jumbo Notsuke Scallops Setagaya Restaurant's Soy Sauce Tonkotsu Ramen "K.O." Special Ingredient: Tokobushi Abalone from Muroto
Toshi Yoroizuka's duo of Parfait and Ice Cream Special Ingredient: Watermelon from Ueki Ecole Criollo Bakery's Japanese Cherry Ice Cream Special Ingredient: "Gion Koishi" Shaved Ice with "Kokuto" brown sugar from Okinawa
Spicy Negitoro Bowl with Broiled Fatty Tuna Special Ingredient: Kawaminami wild bluefin tuna Tenderized Beef Bowl with Consomme Special Ingredient: Beef from the Furutake Farm in Imari
Tendon (Fried Fish Bowl) Special Ingredient: Bigfin Reef Squid from Shishi Island in Kagoshima Kaisendon (Raw Seafood Bowl) Special Ingredient: Caridean Shrimp from Ishinomaki
1st - Kawagoe - Ono Shokuhin's "Zaru Tofu" 2nd - Iwaki - Yamaben's "Phantom" Soy Sauce 3rd - Himeji - Charcoal Roast Pork 4th - Ishigaki - Irwin Mango 5th - Wajima - Dried Nodoguro 6th - Sado Island - "Henjin Mokko" Sausage 7th - Kyoto - Shirakawa Bakery Shokupan (milk bread) 8th - Fukuroi - "Crown" MuskMelon 9th - Urausu - Mini Tomato Bottle 10th - Hara - Canadian Smoked Salmon
Raimon Restaurant's chicken ramen in white broth Special Ingredient: chishimazasa (sasa kurilensis bamboo shoots) from Yakumo Mengekijou Genei Restaurant's Hakata-style Soy Sauce Ramen Special Ingredient: Dried tobiuo (flying fish) from Hirado
Hiroshima okonomiyaki Special Ingredient: Hakodate's Shredded Gagome Kombu / Osaka Okonomiyaki Special Ingredient: Shitenno-ji's Beni shoga, Sei Agri mayonnaise
Hitsumabushi (Nagoya Eel Bowl) Special Ingredient: Lake Hinuma Wild Eel, Hida Sansho's Pepper Powder (Gifu) / Stone Grilled Yukhoe Bibimbap Special Ingredient: Nishiwaga Japanese Royal Fern, Yamaguchi Honpo's Black Sesame Oil
Sanratanmen (Hot and Sour Ramen) Special Ingredient: Oyama Shokuhin Brown Rice Black Vinegar From Aya / Curry Soup Special Ingredient: New potatoes and "ponta" asparagus from Kimura Farm in Mori
Uni Special Ingredient: Yura Red Sea Urchin from Awaji Island / Abalone Special Ingredient: Black Abalone from Shirahama
Mugitoro (Rice cooked with pressed barley) Special Ingredient: "Kaga Maru" Mountain Yams from Nomi / Somen Special Ingredient: Somen from "Miwa Yamakatsu" in Sakurai
Hayashi Rice Special Ingredient: "Super Jumbo Mushroom" (15 cm) from Funagata / Omurice Special Ingredient: "Sicilian Rouge" Tomatoes from Hitachinaka
Oyakodon Special Ingredient: Gonohe Shamorokku Chicken, "Mizunasu" Eggplant Nukazuke from Iseya, Kuromon Market, Osaka / Katsudon Special Ingredient: "Abel" Black Pig from Mijakonojo, "Ise" Takuan from Hayashi Store in Ise