Preheat the oven
to 180'C/350'F/Gas 4. Lightly grease and base-line
an 18cm/7in sandwich tin.
Place the cottage
cheese in a food processor or blender and process
until smooth. Place in a bowl, then add the yogurt,
flour, sugar, egg and egg white, and mix. Add the
lemon rind, juice and blackberries, reserving a
few.
Tip the mixture
into the tin and bake for 30-35 minutes, or until
just set. Turn off the oven and leave the cake in it
for a further 30 minutes.
Run a knife
around the edge of the cheesecake and turn it out.
Remove the lining paper and place the cheesecake on
a warm serving plate.
Decorate the
cheesecake with the reserved blackberries and serve
warm.