Allow the butter and the eggs (if chilled) to stand at room temperature for at least 30 minutes.
Get the ingredients ready by weighing & measuring them into separate bowls.
Cut two pieces of parchment paper into circles that just fit into the bottom of the cake pans.
Make the Cake
Preheat oven to 350°F (175°C).
Grease the bottom of the pans with about 1/4 teaspoon of butter each. Place a parchment paper circles into the bottom of each pan and grease the tops of the parchment paper and sides of each pan with about 1/2 teaspoon of butter. Add 1 tablespoon of flour into one pan, flip the other pan over to cover the first pan and lightly shake the mutually covered pans to coat their insides with the flour. Discard any loose flour in the pans.
In the mixing bowl, add the flour and superfine sugar and beat with the stand mixer or hand mixer until thoroughly combined and creamy. Add the eggs one at a time, beating on low speed until combined and scraping down the sides of the bowl after each addition. Gradually add the flour in 3 batches, gently folding the flour into the butter mixture with the spatula until just combined.
Pour the batter evenly into the two greased pans.
Bake in the oven for 20 minutes or until a wooden toothpick inserted near the center of each pan comes out clean, turning and swapping the positions of the pans halfway through the baking.
Cool the baked pans on a wire rack for 10 minutes. Remove the cake layers from the pans, remove the parchment paper and cool the layers completely on the wire rack.
In the cleaned and dried mixing bowl, add the heavy cream, vanilla and 1 tablespoon of powdered sugar and beat with the stand mixer or hand mixer until light and fluffy.
Plate one cake layer on the plate and evenly top with the jam. Spoon the whipped cream over the jam, top with the second cake layer and use the strainer to dust the top of the cake with the 1-2 tablespoons of powdered sugar.
Slice and serve the cake immediately or chill in the refrigerator to be sliced and served later
Equipment Required (in order of use)
Up to 8 extra bowls to hold the ingredients
Kitchen weighing scale (preferably digital)
Measuring spoons & cups
Baking parchment paper
2 9-inch round cake pans
Large mixing bowl
Stand mixer or hand mixer with wire whisk attachment