烤乳酪蛋糕（饼底）Homemade Baked Cheese Cake (Biscuit Base)

Ingredients:
Base: 
100 gm       Digestive Biscuit
  50 gm       Butter, melted
  50 gm       Castor Sugar


Filling:
 450 gm       Philadelphia Cheese Block
    4  nos      Egg, Separate it
 225 gm       Caster Sugar
   40 gm       Plain Flour
    1 no         Lemon Juice
300 ml         Sour Cream

Topping:
   1 tsp        Gelatin
   5 tsp        Hot water

Method:

Base:
1)  Put the digestive biscuits in a sealed plastic bag.
2)  Crush to crumbs with a rolling pin.
3)  Transfer the crumbs to a bowl.
4)  Pour over the melted butter & castor sugar.
5)  Combine well.
6)  Place them into the tin and press firmly with the bottom of a cup to create an even layer.
7)  You might need a spoon or spatula to help when pressing for the 4 corners of the tin.
8)  Place in refrigerator while you prepare filling.

Filling:
  1)  Separate the egg yolk & egg white.
  2)  In a large mixing bowl, beat the egg yolk with sugar till thick & creamy.
  3)  Add in cream cheese beat lightly till smooth.
  4)  Stir in plain flour, follow by lemon juice & sour cream.
  5)  In a separate bowl beat egg white till stiff and fold into the cheese mixture.
  6)  Pour the cheese mixture into the sponge cake.
  7)  Wrap aluminium foil over the cake tin.
  8)  Place the cake tin into a tray with filled with water at 1" level.
  9)  Bake in preheat oven at 149 C for 1 hour or till firm.
10)  Off Oven & let it stand in oven for an hour.

Topping:
1)  Melt the gelatin in the hot water
2)  Use brush to apply a thin layer of gelatin mixture on top of the cheese cake.