Combine grated cassava, condensed milk, evaporated milk, eggs, cheddar cheese, and sugar in a mixing bowl and mix thoroughly until a smooth batter is formed.
Add 2 cups of coconut milk and mix again.
Grease a baking tray and pour in this batter.
Pre-heat the oven at 350 degrees F for 10 minutes then put-in the baking tray with the batter for 1 hour.
Meanwhile, prepare the topping by combining sugar and flour in a heated saucepan.
Add ½ cup condensed milk and mix properly until smooth.
Add cheddar cheese and coconut milk. Keep stirring constantly for about 10 minutes.
Pour this batter over baked cassava cake and spread evenly.
Separate the egg yolk of the remaining egg.
Glaze the topping with egg white using a basting brush. Simply dip the brush and egg white and brush it on the cassava cake.
Set your oven to broil mode and broil the cassava cake until the color turns light brown.