Mix the flour, brown sugar, raw sugar, cinnamon, nutmeg, allspice, cloves, ginger and salt in a bowl.
Add the cold butter and crumble it together until the mixture resembles a rough sand. Store in the fridge until you’re ready to use.
When you’re ready to bake, preheat the oven to 350°F.
Remove the casserole from the fridge and sprinkle the topping and almonds over the top.
Bake for 45 minutes until golden. Allow to sit for 10 minutes before serving with maple syrup.