Apple Pie Inspired Muffins

Preheat your oven to 375ºF and line 15 muffin cups.

In a large bowl, whisk together the flour, baking soda, cinnamon, and salt.

In a medium bowl, whisk together the buttermilk, melted butter, vanilla, brown sugar, and egg until well combined.

Pour the wet mixture into the dry mixture and add the diced apple. Stir to combine with a wooden spoon until no dry flour is left.

Spoon the batter into the muffin liners, filling to the top.

In a small bowl, mix together all the ingredients for the topping: brown sugar, cinnamon, melted butter, and flour. Generously top each of the muffins with the topping.

Bake for 20 to 25 minutes, until golden brown and a toothpick inserted comes out clean.