About this recipe: This started as a low-fat recipe with fruit that I modified to savoury. Very tasty for breakfast, lunch or evening snack. Use back (Canadian) bacon, trimmed, for a slightly less-fattening version. You can add another rasher if you want more taste and it won't make any difference to the cooking.
You might prefer to cool the muffins and remove the paper cases, as these are difficult to remove cleanly when hot. Heat again for serving.