I DID try again just this morning....THIS TIME: I had new powder and soda, new flour. I only made 1/2 batch and this filled a muffin/cupcake tin of 12.
This time I took a napkin and sprayed it with the non-stick spray stuff and just wiped the bottoms of the cups. Not the sides.
I also was very gentle with the batter and did not overmix.
I baked these at the 375 degrees noted but only for 18 minutes.
Now, They did rise some - - definitely not concave....more like level!(lol) Flat.
BUT the most important thing is that they are DEEEEE-lish!! They have a heavier texture than a package mix for blueberry muffins BUT that is very good!! See, I think last time I expected a "light" muffin, and these are more like the consistency of a banana bread...heavy and moist. Again tho, that is just fine with me as the flavor AND the texture are quite tasty.
So, do NOT feel badly about this recipe!! I LOVE these muffins and so does my hubby!
Thank you Em for giving us this recipe.
hugs at ya,tracy