| 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!