Creating Peach Cobbler Cupcakes is straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Line a muffin tin with cupcake liners.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, baking powder, baking soda, salt, and granulated sugar.
3. Cream Butter and Sugar: In another bowl, beat the softened butter until creamy. Gradually add the sugar, mixing until light and fluffy.
4. Add Eggs and Vanilla: Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
5. Combine Mixtures: Gradually add the dry ingredients to the butter mixture, alternating with the buttermilk. Mix until just combined.
6. Prepare Peaches: Gently fold in the diced peaches and ground cinnamon until evenly distributed.
7. Fill Muffin Tin: Spoon the batter into the prepared muffin tin, filling each cup about 2/3 full.
8. Make Topping: In a separate bowl, combine brown sugar, rolled oats, flour, and melted butter. Mix until crumbly.
9. Add Topping: Sprinkle the topping mixture over each cupcake.
10. Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes or until a toothpick inserted in the center comes out clean.
11. Cool: Remove from the oven and allow the cupcakes to cool in the tin for 15 minutes. Then, transfer to a wire rack to cool completely.

These steps will guide you in creating these incredible cupcakes effortlessly.