Grease a round cake tin or loaf pan and keep it aside.
Grind sweet corn to a smooth paste and transfer it into a bowl.
Add milk, oil, vanilla, lemon juice and sugar to the corn paste and mix until well combined.
Combine flour, baking powder, baking soda and salt in a mixing bowl and mix well.
Add the flour mixture to the wet ingredients and gently fold the batter.
Do not overmix or overbeat the batter.
Immediately pour the batter into a prepared cake pan.
Immediately place the pan in the preheated oven and bake at 180 degrees C for about 45 minutes or a toothpick inserted into the center comes out clean.
Let it cool completely before adding the glaze.
To prepare the glaze, combine milk, powdered sugar, melted butter and vanilla in a small bowl and mix well without any lumps.
Pour it over the cooled cake.
Cut it into slices and serve with a cup of coffee or tea.