Dissolve the cornstarch in 50ml whole milk, leave to rest.
In a blender blitz together 50ml whole milk and the halva of choice (I use the sunflower seed one) until smooth and lump-free.
Freeze in your ice cream maker according to the manufacturer's instructions adding the chopped almonds, walnuts, cashews or pistachios at the last couple of minutes of churning. Store in an airtight container or spoon right away.
See what other Food52ers are saying.