Sponge Cake Sandwich

🧁 Classic Victoria Sponge Cake Ingredients: • 200g unsalted butter (softened) • 200g caster sugar • 4 large eggs • 200g self-raising flour • 1 tsp baking powder • 1 tsp vanilla extract • 2 tbsp milk For the filling: • Strawberry or raspberry jam • 100ml double cream (whipped