Preheat the oven to 150°C (300°F).
Grease and line the pan with parchment paper.
Whip the egg whites until foamy. Gradually add the sugar in 3 additions while continuing to beat until you get a firm meringue.
Add the egg yolks one at a time, mixing well after each addition.
Add the oil the same way, then pour in the milk, reserving 2 tablespoons to dissolve the honey later.
Gently fold in the sifted flour and baking powder in 3 additions using a whisk or spatula. Fold carefully from bottom to top to keep the batter airy.
Slightly warm the honey with the reserved 2 tablespoons of milk and gently fold it into the batter.
Pour the batter into the prepared pan and tap it lightly on the counter to release any air bubbles and smooth the surface.
Wrap the sides of the pan with aluminum foil to prevent the edges from becoming too dark or thick.
Bake for 45 to 55 minutes. A skewer inserted in the center should come out clean with a few moist crumbs.
Leave the cake in the turned off oven for 5 minutes before removing it.
Gently tap the pan on the counter before unmolding. Turn the cake out onto a wire rack and remove the parchment paper.
Place the pan back over the cake and let it cool completely. You can also wrap it while cooling to keep it even softer and moister.
Trim the edges to reveal the soft interior of the cake on all sides.
Enjoy this soft milk cake with a cup of coffee or tea. It is light, fluffy, and melts in your mouth.