Peel and grate granny smith apples. 2 small or 1 large should be enough. Err on the side of more ;)
Combine the flour, sugar, cinnamon, salt and baking powder together in a medium sized bowl. Whisk and set to the side.
In a different bowl add the milk, eggs and melted butter and whisk. Stir in the grated apple to the liquid mixture.
Pour the liquid mixture into the dry mixture and mix by folding. Fold using a fork. Start from the bottom and fold up and over the top. Be very careful not to over mix. Over mixing will cause tough, pointy muffins. Folding slowly and carefully will prevent over mixing.
Pour batter into a lined muffin tin. Bake at 375* F for 18-25 minutes. The muffins will be just starting to turn golden. A toothpick inserted into the middle should come out clean. Scroll up for a tutorial video on how to make these muffins!
These store great in an airtight container in the freezer up to 2 months, or on the counter for up to 5 days. Reheat in the microwave for 8-12 seconds.
These muffins have a low fat content, so tend to stick to the liners more than other recipes. To prevent this, lightly spritz a little cooking spray into the liners before adding the batter.
Mix the wet ingredients well, make sure the eggs are whisked thoroughly. It's important to do this since they don't get mixed very much once the dry ingredients are added.
Be super careful not to over mix once you add the dry ingredients to the wet ingredients. It is better for there to be a few specks of flour remaining than for it to be over mixed. If you over mix they will be tough instead of tender.
Do not over bake. The muffins are done as soon as a toothpick is inserted and comes out clean or with a few moist crumbs.