Preheat the oven to 300°F/150°C. Then generously grease a tube pan with cooking spray and set it aside.
Combine flour, baking powder, salt, and lemon zest in a medium bowl. Set aside.
Add sugar, vanilla extract, and eggs in a large bowl, then cream them using a handheld mixer on high speed until it’s fluffy and starting to look white, about 4-5 minutes.
Heat milk and butter in a small saucepan. Cook until most of the butter is melted and the sides of the pan start to bubble. Do not let it boil. Stir the liquid until butter melts completely.
Slowly mix in milk mixture into the egg mixture and alternate with flour mixture until flour and milk have been used up. And everything is thoroughly combined without over mixing. Scrape down the mixing bowl sides as you go.
Pour your batter into the greased cake pan. Tap the pan on a work surface to eliminate any large air bubbles.
Bake at 300℉/150℃ until a tester inserted into the center comes out clean, 45 -50 minutes.
Transfer the cake to a wire rack and let it cool before slicing.
Serve it with whipped cream and raspberry or strawberries. Enjoy!