Preheat the oven to 180 degrees Celsius / 355 Fahrenheit with top and bottom heat.
Beat the butter and sugar together until light and fluffy (about 5 minutes). Then add the eggs, milk and lemon juice, mixing for a further 2 minutes.
In a bowl, mix the flour, cake flour, baking soda, baking powder and salt.
Add the dry ingredients to the mixture and beat for about 5 minutes.
Line a spring-form tin with parchment paper and grease the sides. Pour the mixture into the tin.
Bake the cake for about 50 minutes. Leave the cake to cool for about 2 hours, then cut it horizontally into two slices.
To make the cream, whip the cream with the stabilizer and icing sugar until stiff. Beat the mascarpone in a separate bowl, then fold it into the whipped cream.
Spread a generous layer of cream over one slice of cake and garnish with strawberries. Place the second slice of cake on top, spreading a layer of cream over the top and garnishing with strawberries and flowers as desired. Enjoy!