Melt margarine and salt.
Place in bowl and add sugar and oil.
Mix together till light and frothy.
Add eggs and beat well.
Add buttermilk and mix well.
Use a wooden spoon to mix in muesli, All Bran and Nutty Wheat. Stir well.
Add self raising flour and mix well.
Place in a pan and bake at 180 °C for 45 mins.
After 45 min remove rusks from oven, cut them into the size you prefer and put them on a wire rack.
Reduce oven to 50 °C and bake rusks for a further 5 hours, or until dry.
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