Place the nuts in the bowl of a food processor and pulse until roughly and evenly chopped.
Add raisins and/or dried fruit and process briefly until slightly chopped. Do not overprocess, or the raisins will become paste.
Add seeds and coconut flakes to food processor. Process until the texture of a cereal like Grape Nuts or as desired.
Keep in an airtight container at room temperature for up to about 4 weeks. Serve with alt milk, a little maple syrup, and fresh fruit, if desired. Serve hot or cold.
If using dates, chop manually with a knife to prevent stickiness and clumping.To temper an egg, crack an egg into a small bowl and whisk. Warm up the almond (or other) milk you'll serve with your cereal until pretty hot, but not boiling. While whisking the egg, very slowly drizzle about 1/4 cup of the hot almond milk into the egg. Once you've poured in about 1/4 cup of hot liquid, you can add the egg into your cereal bowl without worrying about it curdling.