One time I actually did put Ovaltine in eggnog. Ovaltine is a type of chocolate mix full of vitamins for those who don’t know what it is. So I drank an incredibly dense shake of the stuff. Needless to say I didn’t eat the rest of day. It tasted interesting to say the least.
I don't get the riddle in the title though. Not a reference to something I'm familiar with.
Happy belated Birthday
Happy birthday!