Preheat your oven to 425°F (220°C).

Place the butter in a 9x13 baking dish and melt it in the oven while it preheats. Once the butter is partially melted, add your chosen fruit to the dish and allow it to start cooking.

In a blender, combine the eggs, milk, flour, salt, and vanilla extract. Blend on high speed until the mixture is smooth and well combined.

Carefully pour the batter over the melted butter and fruit in the baking dish.

Bake for approximately 25 minutes, or until the pancake is puffy and golden brown.

Serve hot, topped with your favorite syrup or toppings.