Here are the ingredients  that you will need to make this delicious Instagram Dessert Chocolate Mousse:

Ingredients

Rainbow Jello
85g (3 ounces) packet of strawberry jello (red) plus 300millilitres (10.14 fluid ounces) cream
85g (3 ounces) packet of lime jello (green) plus 300millilitres (10.14 fluid ounces) cream
85g (3 ounces) packet of mango jello (yellow) plus 300millilitres (10.14 fluid ounces) cream
85g (3 ounces) packet of berry blue jello (blue) plus 300millilitres (10.14 fluid ounces) cream

Chocolate Mousse for top of Instagram cake
150 millilitres (5.07 fluid ounces) or 1/2 cup plus 1 Tbsp and 2 tsp milk
50g (1.76 ounces) or 3 Tbsp plus 1 tsp cream
1/2 tsp vanilla

3 egg yolks (45g (1.59 ounces))
40g (1.41 ounces) or 3 Tbsp sugar
10g (0.35 ounces) or 1 1/2 Tbsp cornstarch (cornflour)

14g (0.49 ounces) or 1 Tbsp gelatine powder
63millilitres (2.13 fluid ounces) or 1/4 cup water

130g (4.59 ounces) milk chocolate
100g (3.53 ounces) dark chocolate

Additional 300g (10.58 ounces) or 1 1/4 cups cream

White Chocolate Mousse for white part of Instagram cake
300millilitres (10.14 fluid ounces) or 1 cup plus 3 Tbsp and 1 tsp milk
100g (3.53 ounces) or 1/3 cup plus 1 Tbsp and 1 tsp cream
1 tsp vanilla

6 egg yolks (90g (3.17 ounces))
80g (2.82 ounces) or 1/3 cup plus 2 tsp sugar
20g (0.71 ounces) or 3 Tbsp cornstarch (cornflour)

28g (0.99 ounces) or 2 Tbsp gelatine powder
120millilitres (4.06 fluid ounces) or just under 1/2 cup water

260g (9.17 ounces) white chocolate

Additional 600g (21.16 ounces) or 2 1/2 cups cream

Crunchy Chocolate Base
130g (4.59 ounces) milk chocolate
30g (1.06 ounces) or 2 Tbsp plus 1 tsp unsalted butter
1 cup or 32g (1.13 ounces) rice bubbles or rice crispies

Watch the video below for the step-by-step guide: