paper for easier removal. In a large bowl, beat the melted butter and sugar until smooth. Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
In a separate bowl, combine the flour, baking soda, baking powder, and salt. Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk, and mix until you have a smooth, homogeneous batter. Do not overmix.
Pour the batter into the prepared pan and spread it evenly. Bake for 40 to 50 minutes, or until the surface is lightly golden brown and a toothpick inserted into the center comes out clean. Let the cake cool in the pan for 10 to 15 minutes.
While the cake is baking, prepare the buttermilk sauce. In a saucepan over medium heat, combine the sugar, butter, and water. Stir until the butter melts and the sugar is completely dissolved.
