• Preheat oven to 400 degrees F.

Muffin Batter

• Peel, core and roughly chop apples. Add cinnamon and brown sugar, mix and set aside.
• Mix all purpose flour, baking powder and pinch of salt. Set the dry ingredients aside.
• Using a handheld mixer or whisk, mix the eggs in glass mixing bowl until creamy. Slowly add vanilla extract as you mix. Then add yogurt, followed by softened butter. Also add apple juice or rum and mix thouroughly.
• Slowly spoon in the dry ingredients mix. When you have incorporated all the dry ingredients, use a spatula to add the apples mixed with brown sugar and cinnamon. Make sure to scrape and add to the batter any juice released from the apples as they sat as that is full of flavor and aroma. Fold the apples into the batter.
• Set up the baking tray with liners. Using an ice cream scooper, dispense the batter into each slot. Make sure you fill up the baking liners evenly with batter.

Muffin top

• Mix brown sugar with cinnamon and cover the top of the batter that is already distributed in muffin liners inside the baking tray.
• Bake muffins at 400 degrees F for 5 minutes, lower temperature to 350 degrees F and bake for another 16 minutes until the muffins are done. Use a toothpick to perform the toothpick test, insert it in and if it comes out clean, the muffins are done. Rest for about 10 minutes before serving.