Desserts / Sweet Dishes

Apple Muse
Cherry Torte
a Tarte of Goseberies
Gyngerbrede
Candied Horseradish
Italian Pudding (bread pudding)
Lenten Slices
Marmelade of Quinces
Peach Tart
Perys en Composte
Peeres in Confyt
Potage of rys
Pynade (candy)
Quynces or Wardones in paast
Rice in Almond Milk
Rysschews of Fruit
A Tart of Ryce
Snowe
Strawberries in Snow
Sugared Almonds

Meat Dishes

Black Sauce for Capon
Chicken Pasty
Chike endored
Coney in Civey
Cormarye (roast pork)
Custarde
Meat Pyes
Pikkyll pour le Mallard
Pumpes (meatballs)
Pynade
Rissoles (meat pies, pork)
Venison
Venison Custarde

Non-Meat Dishes

A Dishe of Artechokes
Cheese ("Fromage Facile")
Compost
Crusterolles (fried crackers)
Diuers Sallets
Ember Day Tart
Frumenty
Garnished ("Armored") Turnips
Loseyns
A Tart of Onions
Onion and Parsley Salad
Onions with Cumin Sauce
Parsnip Pie
Rique-Manger (eggs and apples)
Spinach Tart
Stuffed Eggs
Vermicelli
Wastels yfarced

Sauces

Black Sauce for Capon
Sauce gauncile
Lumbard Mustard
White Leek Sauce
Wild Duck Sauce
Cold Sage Sauce

Spice Mixes

Powder Douce (sweet)
Powder Fort (strong)
Powder Fine

Recipes that seem like Cheating

Ok, the following recipes are indeed authentic, but without documentation everyone will assume that you're just making things up.
 

Cryspe (Funnel Cake)
Lumbard Mustard (mustard-based barbecue sauce)
Makerouns (Macaroni and Cheese)
Payn purdew (French Toast)
Pipesfarces (Fried Cheese)