Step 1: Prepare the Cake Tins

• Preheat the oven: Set your oven to 180°C (160°C fan)/350°F/gas mark 4.
• Prepare the tins: Grease and line two 10-inch round cake tins with baking parchment.

Step 2: Make the Cake Batter

• Cream the butter and sugar: In a large mixing bowl, beat the softened butter and caster sugar together until pale and fluffy using an electric mixer.
• Add the eggs: Beat in the eggs one at a time, ensuring each one is fully incorporated before adding the next.
• Fold in the dry ingredients: Sift the self-raising flour and baking powder into the mixture and gently fold it in using a spatula. Add the vanilla extract and milk if needed to create a smooth batter.

Step 3: Bake the Cakes

• Divide the batter: Evenly divide the batter between the two prepared tins and smooth the tops.
• Bake: Place the tins in the preheated oven and bake for 30-35 minutes, or until the cakes are golden and a skewer inserted into the center comes out clean.
• Cool the cakes: Allow the cakes to cool in the tins for 10 minutes before turning them out onto a wire rack to cool completely.

Step 4: Fill and Assemble the Cake

• Spread the filling: Once the cakes have completely cooled, spread one cake with a generous layer of strawberry jam. If using, spread the other with whipped cream or buttercream.
• Sandwich the cakes: Place the second cake on top of the first to create a sandwich, pressing gently to secure.

Step 5: Decorate and Serve

• Dust with icing sugar: For a simple finish, dust the top of the cake with icing sugar before serving.