Some more rock cakes ideas:
Replace the muesli with a mixture of 3 tablespoons oatmeal, 2 tablespoons sesame or sunflower seeds, and 4 tablespoons roughly chopped hazelnuts or almonds.
For Tropical Mounds, replace the apples, muesli, and cinnamon with 1 cup shredded coconut and 1 cup chopped ready-to-eat exotic dried fruits, including pineapple, papaya, and mango.
Apples are a good source of vitamin C and soluble fiber (in the form of pectin), as well as offering a flavonoid called quercetin, which is thought to have a potent antioxidant effect.
Adding muesli to baked goods is a good way to increase their fibre content.
Children need healthy snacks to boost their energy and nutritional needs, and these mounds are much better than sugar-laden commercial cookies or salty potato chips.
Per cake: calories 90, protein 2 g, fat 4 g (of which saturated fat 2 g), carbohydrate 13 g (of which sugars 4 g), fibre 0.8 g