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| The surface of the cake | 
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| Side view of the cake | 
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| These was how it look like, before adding the topping | 
Ingredients (Makes a 20 cm square tin)
Cake Base
150g digestive biscuits, finely crushed
75g melted butter
Filling
100ml water
2 tbsps gelatin powder
250g cream cheese, room temperature
70g caster sugar
250ml blueberries yogurt
75ml Ribena blackcurrant juice cordial
Topping
100ml water
2 tsps gelatin powder
80ml Ribena blackcurrant juice cordial
Method
1.) Line the sides of the tin with aluminum foil. 
2.) Cake Base: 
    - Combine crushed digestive biscuits and melted butter, press the crumb onto 
      the base of the tin firmly.
    - Chill in freezer for 1 hour or until firm.
3.) Filling: 
   - Sprinkle gelatin powder in the water and set aside for 10 mins. 
   - Double boil the gelatin till dissolved and set aside to cool. 
   - Beat cream cheese and sugar till smooth. Add in the cool gelatin and 
      blueberries yogurt, mix till combined. 
   - Divide the mixture into 2 portion.
   -  Add in the 75ml ribena into 1 portion and mix well.
   - Alternately spoon the mixture into the cake base and swirl with a skewer
     through the mixture to create marble effect. Refrigerate for 1-2 hours till set.
  
4.) Topping:
  - Sprinkle gelatin powder in the water and set aside for 10 mins.
  - Double boil the gelatin till dissolved. 
  - Stir in the ribena and set aside to cool. When completely cooled, gently pour 
    the mixture onto the cheesecake and chill overnight or until set.
Notes
- 
Do not burnt the gelatin. I used a glass bowl to bloom the gelatin and place it on another bowl filled with hot water, stir till dissolved. 
- 
Original recipes use plain yogurt, i replace with blueberries yogurt. I reduce 5g of sugar in the filling. 
- 
I did the cake base and filling in the evening. The topping was done in the morning. 
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Topping can be replace with 1 pkt of blackcurrant jello, using 400ml of water with 2 tsp of gelatin powder. 
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I increase 15g of the melted butter, as i find the base too dry. 
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Personal tips: use cake ring or removable cake tin for easy releasing the cake.