Preheat oven to 190 C. Lightly grease one 12-cup muffin tin, or line with paper muffin cups.
Lightly beat egg whites.
In a separate bowl, mix dry ingredients thoroughly.
In a separate bowl, mix together milk, oil, honey and apples. Gently fold in egg whites to the wet mixture. Add the wet mixture to the dry ingredients. Fold together until just moistened. Batter will be lumpy.
Fill greased muffin tins two-thirds full. Bake about 20 minutes until lightly browned.