Preheat Oven & Prep Pan: Set the oven to 356ºF (180ºC) fan-forced. Grease an 8-inch round baking pan with butter, line the base with parchment paper, and dust the sides with flour. Set aside.
Combine Wet Ingredients: In a large mixing bowl, combine the yogurt, eggs, sugar, milk, and vanilla. Whisk until well combined.
Add Dry Ingredients: Sift in the flour, baking powder, and baking soda. Add the salt and gently whisk until just incorporated, taking care not to over-mix. If the batter thickens, switch to a rubber spatula. A few small lumps are okay.
Transfer Batter: Pour the batter into the prepared pan, smoothing the top.
Bake: Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs. The top should be lightly golden and slightly sticky to the touch.
Cool: Allow the cake to cool in the pan for 15 minutes before transferring it to a wire rack to cool completely.
Serve: Dust the cooled cake with powdered sugar and serve with whipped cream and fresh berries if desired. Enjoy!