Apple-cinnamon Muffins 8/10
1.75 c flour
6 tbsp sugar
1 tbsp baking powder
1 tsp salt
1 egg
3/4 c milk
1/3 c oil
1 granny smith apple cut into small chunks
1/2 tsp cinnamon

mix everything but the fruit.  Fold in the fruit.

Cook 20-25 minutes at 400F.

Source:  Betty Crocker.  I'm afraid I can't provide a better citation because the cover has long disappeared, along with the first few pages and a few random ones in the middle.

Notes:  Works with frozen apples.