Preheat your oven to 325 degrees F. Grease the isnide of a 9-inch x 5-inch loaf pan. Set aside.
Combine the flour, sugar, baking powder, and baking soda in a large bowl. Set aside.
In a medium bowl, whisk together the egg and buttermilk until well combined.
Stir the wet ingredients into the flour mixture until it just comes together. Then add in the melted butter and mix just until combined. The dough will be very wet. (Overmixing will make the bread dense and tough. Only mix as much as you have to.)
Pour the dough into the bread pan. Bake for 60 to 65 minutes or until a toothpick inserted into the center comes out clean.
Remove the pan from the oven, and let it cool to room temperature on a wire rack before removing the loaf from the pan. Top with butter, honey, jam, or jelly, if desired.
Notes
If you don’t like your bread very sweet, cut back the sugar to ¼ cup.
This is not a traditional rustic, round loaf. It’s more of a batter than a dough and makes a very moist, sweet bread.