1. Preheat oven to 350 degrees. To prepare filling, toss berries with tapioca (if using), sugar and lemon zest (without tapioca, crumble will be very runny). Set aside.
2. To make topping, in a large bowl, whisk together flour, sugars, spices and salt. Stir in butter and almonds. Coarse crumbs will form.
3. Pour filling into a 9-inch square or round pan (do not grease first). Using your fingers, form topping mixture into 1/4-inch to 1/2 inch crumbs and spread over caike. Bake until filling bubbles and topping is light golden, about 55 inutes. Let cool slightly. Serve.