I normally post on BT but thought this is more for OT.
It's my husband's birthday and my 2.5 year old wanted to bake him a blue cake with pink icing. I bought blue food colouring but I've ended up with a green sponge mix due to the butter and eggs. I don't know why I didn't foresee this happening. So my poor husband is going to have a green cake with pink icing and gold and silver candles (and that's before Eliza has even seen the sprinkles in the cupboard ?).
If I'm making a coloured sponge in future, how do I make sure I get a true colour?
Thank you.