Long term investment/Deposit

I am looking to invest €16k for my daughter who is aged 3 years.
Investment term is likely to be 15 years minimum.
The options I want to look at are.
a) guaranteed interest account. (5 years, 10 years or 15, (I would have to look to re-invest after 5 years or 10)
b) initial sum guaranteed with more risk on the interest side.

I am looking for suggestions.

National Solidarity Bond is good for 10 years if you believe the Govt can pay you...apart from that review the best buys thread and the investments forum.

Personally, I think with all that is going on right now, I would not lock my money up for 10 years in a NTMA product that funds the Irish national debt. It is too risky/there is too much uncertainly.

Read the best buy threads. Are you adverse to locking for 1 year and then reviewing your options again?

Thanks for the suggestions.

I am not adverse to setting up for one year and reviewing.
I guess it depends on what way you think bank interest rates will go, maybe the 5.5 year saving certificate with An Post is the best rate over the next 5 years.