Let’s bring this delightful loaf to life, step by step:

1. Preheat your oven to 350°F (175°C) and grease a 9×5 inch loaf pan.
2. In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.
3. In another bowl, combine the melted butter, eggs, vanilla extract, and buttermilk. Mix until well combined.
4. Gradually add the wet ingredients to the dry ingredients, stirring gently until just mixed. Avoid overmixing to keep the loaf tender.
5. Fold in the blueberries, peaches, and lemon zest, ensuring they are evenly distributed throughout the batter.
6. Pour the batter into the prepared loaf pan, smoothing the top with a spatula.
7. Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean. The loaf should be golden brown and fragrant.
8. Allow the loaf to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
9. For the lemon drizzle, whisk together the powdered sugar and lemon juice in a small bowl until smooth. Drizzle over the cooled loaf.

There’s something magical about watching a few simple ingredients transform into something special. This loaf is a testament to that magic.