Rainbow Push Pop Cake

Bought the push pop mould so long but didn't try it.  Friend suggested to use it to make cake for Teacher's day.  I used Judy swissroll recipe and add in the colors.  First batch using cupcake case and bake in muffin pan but the cake shrink a lot.  Second batch just baked on a swissroll pan and used cutter to cut.  So much easier and cake texture nicer.

Swiss Roll Recipe:
(Two 10x10 cake pan)
Ingredient A:
60g sugar
1/4 tsp salt
60g oil
5 egg yolks
75g water
Stir n mix all ingredient together till sugar melt.

Ingredient B:
115g cake flour
1 tsp baking powder
1/4 tsp baking soda
Sift all ingredient n pour all in once to the yolk mixture

Ingredient C:
5 egg white
1/4 tsp cream of tartar
80g sugar
1) Whisk the white n cream of tartar till soft peak then add in sugar
2) whisk till stiff then use low speed to stablise
3) add some white mixture to yolk 1st n mix well
4) Then pour all into the white mixture
5) Fold gently till mix well. Divide the batter into two bowls and put in the colors.
6) Pour into two pans n bake at 200c for 10 to 15min