Preheat oven at 180C/350F. In a small bowl, mix together diced apple, brown sugar and cinnamon powder.
In a mixing bowl, bowl, mix together eggs, melted butter, sugar, yogurt, milk and vanilla
Add pre-sifted flour, baking soda, salt and cinnamon powder. Mix just until combined. Not more than 30 seconds.
Add prepared diced apples. Mix a bit.
Place in a lined muffin tray. Sprinkle some brown sugar.
Bake in a preheated oven for 25-30 minutes or until toothpick comes out clean when inserted.
Serve and enjoy!
