Heat oven to 180 degrees Celsius (~350 degrees Fahrenheit).
In a greased oven safe container/baking tray (6-8 x 6-8 inch), combine the oat "base" ingredients. Mix well to combine.
Place in the oven and cook for about ~40 minutes, or until golden and firm to touch.
Allow oats to cool in the container/ tray, and then loosen the edges with a knife and then combine and add the yoghurt 'topping'. Refrigerate and serve the next day.
Upon serving, cut into ~4 servings*. If serving warm the next day - reheat a slice in the microwave for ~1 minute (yes the yoghurt layer actually tastes great slightly heated or add the next day), or serve as is/cold.
