The best, easy to bake Sunflower Seed Rusks! Ingredient: 1kg self-raising flour 10ml (14g) salt 10ml (10g) baking powder 2 cups (400g) brown sugar 2 cups (160g) rolled oats 3 cups (120g) All Bran flakes 2 cups (260g) sunflower seeds 2 large eggs, free range 500ml buttermilk 500g butter, melted 0.5g Non-stick cooking spray