Preheat your oven to 425°F (220°C).
Grease an 8-inch oven-safe skillet or baking dish.
In a large mixing bowl, whisk the eggs until smooth.
Sift in the flour and whisk until combined.
Gradually pour in the milk while whisking continuously to create a smooth batter.
Add the granulated sugar and vanilla extract and whisk until fully incorporated.
Pour the batter into the prepared skillet.
Bake for 15–20 minutes, or until the breakfast puff is golden brown and dramatically puffed around the edges.
Remove from the oven and immediately dust with powdered sugar.
Top with fresh berries and serve with plain yogurt if desired.
Enjoy warm for the best texture and flavor.