1. Toast the ground almonds at 150°C for 8-12 minutes until light golden brown in colour. Let cool.
2. Combine the ingredients with the paddle until homogeneous in texture. Press through a coarse sieve.
3. Bake at 150°C for 15 minutes until cooked. Flip 2-3 times while baking.
4. Melt the chocolate and combine with the crumble.
5. Spread the mixture out to a thickness of 3.5 mm between 2 sheets of baking paper and cut to the size of a half frame.