Preheat the oven to 360° F.
Lightly oil and dust the mini bundt cake mold pan, or any other mold of choice, with flour.
Whisk the oil, milk, vanilla, and sugar in a medium bowl. Add the egg and whisk well.
Add the flour, salt, and baking powder and mix gently till the batter just about comes together. Be careful not to over-mix.
Scoop little dollops of the batter into the oiled and dusted molds.
Bake for 15 minutes, then increase time in increments of 5 minutes as needed, until a skewer inserted into each cake comes out clean. Let the cakes cool completely on a wire rack for at least an hour before decorating.