Preheat your oven to 350°F (175°C).
Grease a 9x9-inch baking pan with butter or cooking spray.
In a large mixing bowl, whisk together the flour, sugar, and salt.
Add the eggs, milk, melted butter, and vanilla extract to the dry ingredients.
Stir gently until the mixture is smooth and well combined, being careful not to overmix.
Pour the batter into the prepared baking pan and spread it evenly.
Sprinkle the top of the batter with fresh berries if using.
Bake in the preheated oven for 25-30 minutes or until a toothpick comes out clean.
Allow the cake to cool in the pan for 10 minutes before transferring to a cooling rack.
Slice and serve with a dusting of powdered sugar or whipped cream, if desired.
Enjoy your homemade Amish Cake, topped with more fresh berries if preferred.