Yanis Varoufakis has talked extensively about it[1]. But the real evidence is the total lack of transcripts of a procedure that should be publicly available since it concerns European citizens directly. Since you seem to be so happy with the current state of the EU, could you explain to me why there is no transcript of what my FinMin said and what XYZ FinMin replied? Maybe you can enlight us.
You got this all wrong - the Council of Ministers has no power where it matters, on budget and policies, at all. It's just there to spoonfeed ppl who can't tell the difference between a symbol with nominal power (that's why you get Malta and Ireland to preside this group) vs a group with executive and decisional power (like the Eurogroup) who decides who's bank are going to be closed next (Ireland and Greece are pretty good examples).
[1] https://www.yanisvaroufakis.eu/2016/03/30/the-eurogroup-made...