The amount of time to bake the apples and toast the granola will vary depending on the type of solar oven used, the weather, and the amount of food cooked.
To make on the stovetop, simmer the prepared apples for ½ hour or longer on a low heat until the apples are tender. The granola can be toasted in the microwave for a few minutes or in a low oven for 10 -15 minutes until toasted.