Here is a helpful solution to a common cause:
Oven too hot or uneven oven heating patterns
- Oven temperatures vary over time. To insure the correct temperature each time you bake, always use an oven thermometer.
- The best test to determine doneness is to insert a wooden pick into the center of one of the center muffins before removing the pan from the oven. If it comes out clean or with a few moist crumbs clinging to the pick, the muffins are done. Begin testing muffins 5 minutes before the minimum time indicated in recipe.