How do you introduce and idea and then state it? (10 points to the deserving

[Jon Jon]

answerer)? 'Here is what I want to say: this is what I want to say'.

'Perhaps the best way to make ice is like this: put water in an ice cube tray and put it in the freezer'.

Is it correct to use a colon?

'Perhaps the best way to make is to put water in an ice cu... and so on'.

Better?

'Perhaps the best way to make is, put water in an ice c.... blah'

Which way is best? Which way should it be done?