In sc put 60 grams of butter and turn on high.

Once butter has melted add plain flour and mix well.

Let that cook while you chop a half of onion and heat milk in the microwave, 2 minutes should be enough.

Give your flour another good stir then tip your warm milk into sc. Mix well until the flour has dissolved into the milk.

Add a chicken stock cube, mixed herbs,salt and pepper and mix.

Place your onion into sc and mix well.

Cook on high for 1 1/2 hours stirring every 20 minutes or so. Then put in drained tuna, grated cheese, lemon juice and eggs, gently stir.

Cook for another 1/2 hour on high.