What instead of butter?

[MrsWhirling]

So butter used to sauté some onions gave my DS 7mths a reaction. What can I use instead which is just as fatty? I have used olive oil but I'm not sure it's as fatty. Thanks x

[valiumredhead]

I always use olive oil.

[PourquoiPas]

Olive oil with a knob of spread (pure brand or vivitalte) is really good.

[SanityClause]

Olive oil for cooking.

Pure olive oil spread (it's non-dairy, not all brands are) for spreading and baking etc. (Pure is the name of the brand.)

[Bunbaker]

Oils are as fatty as butter. Where did you get the idea that they aren't?

I would use olive oil as well.