Chocolate mousse cake recipe

* Chocolate sponge (40 x 25.5 cm pan); finished cake: 16 cm square pan
3 egg white
60g sugar
25g cocoa powder
45g hot water
50g cake flour
3 egg yolks
20g sugar
20g vegetable oil

* Chocolate mousse
70g dark chocolate – chopped
2 egg yolks
30g sugar
100g warm milk
1 tsp instant coffee
1.5g gelatine sheet x 3

250g heavy cream – soft peaks
15g sugar

* The chocolate glaze
70g cocoa powder
120g hot water
120g heavy cream
160g sugar
1.5g gelatine sheet x 3

white chocolate and strawberries for garnishing