Here at Feast Box, we know only too well how painful it is to get halfway through cooking a recipe before realising you're missing one or two crucial ingredients. We've created a list of some of the most requested ingredient substitutes so that when you next find yourself in this sticky situation, you'll be able to save your supper with one of these swaps!

What can I use instead of baking powder?

1. Cream of tartar: Baking powder, or bicarbonate of soda can be swapped for cream of tartar if you have it. Cream of tartar is actually a powder that will be found with the spices in the supermarket. 


2. Baking soda and vinegar:  If you have baking soda, you can combine this with vinegar to make a good baking powder substitute as well. For each teaspoon of baking powder required, replace with a 1/4 teaspoon baking soda and a 1/2 teaspoon vinegar.

What can I use instead of buttermilk?

1. Lemon juice: To make a buttermilk substitute, you can add an acidic substance, like lemon juice, to milk. Mix 1 tbsp of lemon juice with 1 cup of whole milk, stir and then let it sit for 5 minutes. Once the milk has thickened and curdled slightly, your buttermilk substitute is ready to use!

2. Vinegar: Same method as above. 

3. Cream of tartar: Same method as above.

4. Plain yogurt, sour cream or kefir: Any of these substitutes can be used as a straight swap.

What can I use instead of cornflour?

1. Flour: Cornflour is usually used as a thickener in recipes and can in a pinch be replaced with plain flour. The difference being that cornflour is very easily absorbed whereas flour will require a bit more mixing and cooking time. If cornflour is called for towards the end of a recipe, add your plain flour a bit sooner and make sure it's well mixed and spends some time on the heat before serving. 

2. Potato starch: Can be used as a direct substitute.

3. Mashed potato granules: An unusual one to have to hand, but if you do, they work!

What can I use instead of vanilla extract?

1. Maple Syrup: This is the easiest and most straight forward swap for vanilla extract.

2. Almond Extract: This substitute has a slightly stronger flavour than vanilla extract, so use it more sparingly when swapping.  

3. Bourbon, Brandy or Rum: And hey, if the recipe doesn't turn out well, you can just pour yourself a stiff drink instead!

What can I use instead of self raising flour?

Self raising flour is plain flour with baking powder and salt added. To make your own, simply combine 1 cup of plain flour with 1 1/2 teaspoons of baking powder and 1/2 teaspoon of salt.

What can I use instead of caster sugar?

Caster sugar has a very fine texture that makes it suitable for baking. If you're all out, you can whizz some granulated or demarara sugar in a blender to achieve a finer texture. Just be careful not to overdo it and avoid turning the sugar into powder. 

What can I use instead of yeast?

This is probably the trickiest substitute. It's not ideal, but you could replace yeast with equal parts of lemon juice and baking soda. 

If your recipe calls for 1 teaspoon of yeast, you can use 1/2 a teaspoon of lemon juice and 1/2 a teaspoon of baking soda. 

Bear in mind that if you are baking bread using this method, the dough won't need half as long to prove and will begin rising straight away.

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