Nutty Burgers (vegetarian)

This recipe was emailed to us from Evelyn. "I did a vegetarian cooking course at our local community college and this was one of the delicious recipes. I don't know what the original source was."
You will need:
     2 oz (50g)       brazil nuts
     2 oz (50g)       ground almonds
     1/2 tsp            mustard powder
     3 oz (75g)       brown breadcrumbs
     3 oz (75g)       onion peeled, finely grated
     1 level tsp       yeast extract (Marmite or Vegemite)
     1 level tsp       mixed herbs
     1                    egg, beaten
     1 tblsp            hot milk
                           seasoning to taste
                           vegetable oil for frying
Method:
     1  Finely grind brazil nuts in food processor or blender. Tip into mixing bowl. Add
         almonds, mustard, crumbs, onion, yeast extract and herbs.
     2  Bind together with egg and milk, stirring with a fork. Season to taste with salt and
         pepper. Shape into 8 burgers with damp hands. Leave to stand 1/2 hour to firm-up.
     3  Heat about 1/4 inch (5mm) oil in frying pan. Add burgers and fry until golden brown,
         allowing about 5-6 minutes and turning twice.
     4  Remove from pan, drain on crumpled paper towels and eat hot or cold.
These are delicious served warm as a burger with choice of salad; or eaten
cold with salad the next day.