my muffins are flat. where did I go wrong?
You probably overfilled your muffin pan. It should only be ¾ full, or your muffins will be too big and flat.
Are these muffins mini or regular?
This recipe makes 12 REGULAR sized muffins.
can i substitute the cream cheese?
Of course you can. I mention adding a swirl of peanut butter or Nutella above, but I don’t see why you couldn’t substitute the dollop of cream cheese for either.