In a mixing bowl, combine the all-purpose flour, eggs, milk, granulated sugar, vanilla extract, and salt. Use a whisk to mix everything together until the batter is smooth and free of lumps. Stir in the melted butter and let the batter rest for about 30 minutes.
Heat a non-stick skillet or crepe pan over medium heat. Lightly grease the pan with a bit of butter. Pour about 1/4 cup of the batter into the pan and swirl to coat the bottom evenly. Cook for 1-2 minutes until the edges start to lift and the bottom is lightly golden. Flip and cook for another minute. Transfer to a plate and repeat with remaining batter.
In a separate bowl, pour in the heavy whipping cream. Add the powdered sugar and the teaspoon of vanilla extract. Using an electric mixer, whip the cream on medium speed until soft peaks form, about 3-5 minutes. Set aside for assembly.
Take one crepe and spread a generous layer of whipped cream over it. Add fresh raspberries on top of the cream. Fold the crepe in half or roll it up. Dust with additional powdered sugar and serve.