Preheat the oven to 350 ºF
Line a muffin tin with muffin liners
In a medium bowl, mix the apple pieces with the brown sugar and set aside. Make sure to coat all pieces well.
In another medium bowl, whisk together the flour, baking soda, salt and cinnamon.
In a stand mixer bowl, pour in the granulated sugar and oil. Use the flat beater attachment (used for cookie dough) to beat the sugar and oil on medium high speed for about 3 minutes.
Lower the mixer to medium speed and add one egg at-a-time, and then the vanilla. Mix 1 minute.
Add the apple mixture and mix for 1 minute.
Lower the mixer speed to the slowest setting and carefully add in the flour mixture. Mix for 1 minute.
Pour the batter into the liners using a soup spoon. The liners should be about 80% full.
Place the muffin tin in the oven on the middle rack.
Bake for 25 minutes or until a cake tester comes out dry.
Let the muffins cool in the tin for about 10 minutes and then transfer the muffins to a cooling rack.
Let the muffins finish cooling and serve. Enjoy!
We used prince apples. This is what we had on hand. You should be able to use any favourite apples you have on hand.