Creating these delightful Peach Muffins is a simple process. Follow these easy steps for a successful bake:

1. Preheat the Oven: Set your oven to 350°F (175°C). Line a muffin tin with paper liners or grease it lightly.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and cinnamon until well combined.
3. Combine Wet Ingredients: In another bowl, mix the melted butter, buttermilk, eggs, and vanilla extract until smooth.
4. Combine Mixtures: Pour the wet ingredients into the dry ingredients, stirring gently until just combined. Do not overmix.
5. Fold in Peaches: Carefully fold in the diced peaches and optional nuts, ensuring they are evenly distributed in the batter.
6. Fill Muffin Tins: Spoon the batter into the prepared muffin tin, filling each cup about two-thirds full.
7. 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.
8. Cool: Remove the muffins from the oven and allow them to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely.

These straightforward steps will guide you in crafting these incredible Peach Muffins.