|250 ml (1 c) cake/pastry flour||=||200 ml (3/4 c) all-purpose flour|
|cornstarch||=||flour (double the quantity)|
|250 ml (1 c) milk||=||125 ml(1/2 c) evaporated milk + 125 ml (1/2 c) water|
|2 Tbsp baking powder||=||1/2 tsp baking soda + 1 tsp cream of tartar|
|buttermilk||=||1 Tbsp lemon juice + milk|
|1 square unsweetened chocolate||=||3 Tbsp cocoa + 1 tsp shortening|
|2/3 c honey||=||1 c sugar + 1/3 c water|
E-mail me if you know any more substitutes!