My Popovers Pooped Out

This is what popovers are supposed to look like:

I have made popovers that have looked somewhat like the ones above.  They are awesome when they are warm, buttery and full of jam.  I made popovers this morning and followed my usual recipe and this is what resulted:

I don't know what I did wrong.  They were mealy, dark and not edible.  They didn't pop.  They were all poopy.  Oh well.  Maybe next time I'll have better luck.