This can be used to colour any food, but as it is not a concentrated colour, you may need more of it to achieve a deeper or brighter colour. This may throw off the liquid balance in some recipes. To ensure the right amount of colour is used, use a dropper to measure out the liquid colouring. Make coloured dough with this liquid colouring and adjust the water content typically used. You can also add vinegar to the liquid colour to dye Easter Eggs.