½cupbutter, softened at room temperature (not melted)
2large eggs
1 ½teaspoonsvanilla extract
1 ½cupsall-purpose flour
1 ¾teaspoonsbaking powder
½cupmilk, any
Topping:
⅓cupbrown sugar
1teaspoonground cinnamon
Instructions
Prep:
Preheat oven to 350 degrees and line a muffin pan with 12 paper liners.
In a small bowl, combine brown sugar and cinnamon and set aside.
Make the muffin batter:
In a large bowl or the bowl of a stand mixer, beat the sugar with the softened butter until smooth and creamy, about 5 minutes. Add the vanilla extract and eggs, one at a time, until incorporated into a batter.
In another bowl, combine the flour and baking powder.
Add the flour mixture slowly into the butter-sugar bowl and combine. Add the milk to the batter until it's smooth. Fold the chopped apples into the batter.
Fill the muffin cups about ¾ way to the top with batter, making sure the apple pieces are distributed evenly throughout.
Sprinkle each muffin with ½ teaspoon of the cinnamon-sugar. Using the back of a fork, gently swirl the brown sugar into the batter.
Bake:
Bake the muffins in the preheated oven for about 22 minutes, or until the tops are golden brown or when a toothpick inserted in the center comes out clean. Remove the muffins from the oven and allow them to cool down for 10 minutes before enjoying.
Storage:
Store muffins at room temperature in an airtight container or zip lock bag lined with a paper towel (to absorb any excess moisture) for up to 24 hours. Refrigerate them for up to 5 days or in the freezer for up to 3 months.
Notes
I’ve tested this muffin recipe with a 1:1 all-purpose gluten-free flour successfully. Depending on the brand you use, you might need to add 1-2 tablespoons of extra liquid.
You can use whole-wheat pastry flour (white whole-wheat) but not regular 100% wheat flour.
You can use 1 cup all-purpose flour and ½ cup whole-wheat flour. Using the full amount listed in the recipe of regular whole-wheat flour will yield very dense muffins.