• Begin by heating the oven to 325°F and then prepare a 10-inch bundt pan by greasing it with cooking spray and flour.
• In a medium bowl, whisk flour, baking powder, baking soda, and salt together.
• Cream butter and sugar together until it becomes light and fluffy using an electric mixer in a large bowl.
• Add the eggs to the mixture singularly, beating the mixture thoroughly after each addition.
• Next, stir in the vanilla. Gradually add the flour mixture in parts, alternating it with the buttermilk until all ingredients are blended well.

For the Glaze:

• Utilize a small saucepan to heat up butter at medium temperature, and then mix in water and sugar until it boils.
• After taking the cake off the heat, add in the vanilla and stir.
• While the cake is still warm, use a fork or toothpick to make small holes all over the surface.
• Pour glaze over the cake, allowing it to soak in.