Nuts and Bubbles Cake (Nutty Bubble)

1. Separate the cold eggs (yolks and whites) and bring them up to room temperature.
2. Take one cup of flour (I used a 250 ml measuring cup here).
3. Remove 2 Tbsp of the flour from the cup and replace it with 2 Tbsp of the Boost.
4. Add to a sieve along with baking powder, baking soda, and salt.
5. Sift 2 or 3 times to get the best results. Set aside. I usually sift the flour and boost alone (2-3 times) and then just use a wire whisk to mix in the other ingredients.
6. Grease a 9-inch baking pan lightly with butter. Place a baking parchment paper on the base and apply a little more butter on top. Sprinkle flour over this and tap to remove the excess, thereby covering the baking sheet with a thin layer of flour only. Set aside.
7. Beat the egg yolks and sugar(1/4cup) together till the sugar begins to dissolve. Then add the oil(1/2cup) and continue to beat till pale yellow in color. Also, add the vanilla extract.
8. To this, add the sifted(dry) ingredients and use a spatula to fold in. Add 2 - 4 Tbsp of milk. First, add only 2 Tbsp. You may not require all the milk, depending on the size of the egg used. You should get a pourable batter, just loose enough in consistency, that forms ribbons when lifted over the batter.
9. Next, whisk the egg whites in a clean dry bowl. Once foamy, add the sugar(1/2cup) and continue to whip till you get stiff peaks, but it still looks glossy.
10. Fold this into the batter also with a spatula. Work quickly and don't overwork the batter. Just try to incorporate evenly.
11. Pour into the prepared cake pan and tap 4-6 times on the countertop to remove air pockets.
12. Bake at 180ºC for 40 minutes, till the top is golden and a toothpick inserted in the center comes out dry.
13. Remove from oven and allow to cool down by inverting over an elevated wire rack. Allow cooling completely like this.
14. Run a sharp knife around the cooled cake to release it. Slice into two.
15. While the cake is cooling off prepare a slightly sweetened whipped cream. I used 2 cups of whipping cream. I show how in this video.  You can mix in some boost into the whipped cream for flavor, or simply add icing sugar and vanilla.
16. Place the first slice of sponge cake on the cake turntable. Drizzle some sugar syrup, followed by the homemade dulce de leche. If you are too lazy to make dulce de leche, you can just drizzle some thick condensed milk. I usually use dulce de leche made from condensed milk.
17. Now add a layer of whipped cream topping. Scatter the chopped nuts and chocolate chips over that. I usually only use cashew nuts and chocolate chips for the filling and leave the other nuts for the 'outside' of the cake. It gives a better 'mouth feel'.
18. Place the next cake layer and repeat with sugar syrup. Now top the sides and top with whipped cream and use an offset spatula to spread evenly. You may chill this cake in the fridge for a while to allow the topping to set a bit.
19. Spread the chopped assorted nuts and chocolate chips all around the sides of the cake.
20. Now pipe random bubbles over the top or feel free with the deco. For the bubbles - either use thick condensed milk Or dulce de leche OR make a small batch of white chocolate ganache (read below). The white chocolate ganache gives firmer bubbles. The condensed milk or dulce de leche gives clearer more life-like bubbles but it tends to spread out and flatten after some time. I used a small piping tool to do this step, or you can make a piping bag using a small ziplock bag. Dust over the top LIGHTLY with boost powder.
21. You can use any leftover whipped cream to do simple piping all around the edge of the cake. This is optional.
22. Chill in a closed cake container for a few hours before serving or overnight for best results.

For White Chocolate Ganache (bubbles):

1. Heat the cream in a small saucepan till just bubbly.
2. Microwave the chocolate, cream, and butter for 2 minutes at intervals of 20 seconds, till the chocolate melts.
3. Stir in the warm cream - briskly till glossy. Put in a small piping tool or bag and pipe the bubbles.