Preheat the oven to 180C/Fan 160/Gas 4.
Put the dry topping ingredients (flour, oats, sugar, seeds and Drink Me Chai Latte Spiced) in a mixing bowl and rub in the butter until it is evenly distributed and the mixture has formed small clumps with a granola like look.
Spread the mixture evenly over a baking tray and bake for about 20 minutes (turning half way through for even baking), or until golden-brown and crisp.
Add chopped walnuts, flaked almonds and raisins to your mixture. Place the chopped banana, cherries, strawberries and raspberries for the filling in a saucepan along with the caster sugar.
Bring to a simmer over a medium-low heat and cook, stirring occasionally, until the sugar has dissolved. Spoon into the base of a heatproof baking dish. We used enamel, but glass or ceramic is fine. Spoon on your pre baked crumble and enjoy with clotted cream or single cream.