In a large bowl, add all the ingredients and give them a good whisk with a balloon whisk.
Pour the batter into the prepared tin, and tap on the counter to level.
Bake for 30 minutes, until the tester comes out clean.
Cool completely, then demold the cake and place it upside-down on the serving platter. Trim the base if desired.
Cream filling
Place the cream, sugar and agar agar in a saucepan and whisk until smooth. Simmer over low heat for 2-3 minutes stirring often to activate the agar agar.
Pour this over the white chocolate and leave to stand until the chocolate melts. Whisk until smooth. Stand over warm water if required.
Whisk in the cream cheese just before you need to pour it in. Taste and adjust sweetness as desired.
Topping
Dice the strawberries and toss them in sugar. Mix around a minute until glossy, then top the cake with them.
Assemble
Moisten the cake with Cointreau or a simple orange sugar syrup.
Fill the cavity with diced strawberries, then pour the cream filling over.
Place the cake in the fridge to set overnight.
Top with the macerated strawberries. Garnish with freshly halved strawberries, mint and edible flowers.