Breadmaker Disaster- Why?

[Smowball]

I've got a new breadmaker and yesterday decided to use up some over ripe bananas and make one of the recipes in the accompanying book - banana and nut bread. The recipe says as follows:

Ingredients group 1.
Butter
Milk
Mashed banana
Egg
Walnuts
Lemon rind

Ingredients group 2.
Plain flour
Bicarbonate of soda
Baking powder
Sugar
Salt

Method:
Mix group 1 in a bowl. Mix group 2 in a separate bowl. Pour mixture into baking pan.

Now I've read this as pouring the two separate bowls of mixed ingredients into the baking pan and then cooking. But although it ran thru programme and mixed and cooked, it didn't rise- not a bit. It literally stayed the level it was when raw. Any idea what could have gone wrong??

[Old_Geezer]

http://chemistry.about.com/cs/foodchemistry/f/blbaking.htm

For JD

[Smowball]

Oh really? I did think the amount was small

[pastafreak]

Here's one recipe...give it a try.
http://jsavvymums.blogspot.co.uk/2013/07/bread-machine-banana-cake.html

[Smowball]

Thanks everyone. Cheers pasta x

[EDDIE51]

Jackdaw No they are not the same thing
Baking powder is a mixture of Bicarbonate of Soda Plus Cream of Tartar, For a lot of recipes you have to use both together.