large pinch celery salt
1 small onion, peeled and finely chopped
1 tsp fresh thyme leaves
2 tbsp plain flour
150ml/ΒΌpt fresh beef stock
salt and freshly ground black pepper
freshly ground black pepper
Β½ tsp salt
400g/14oz self-raising flour
200g/7oz beef or vegetarian suet
225g/8oz ox kidney, cut into 2.5cm1in cubes