Toast hazelnuts in a dry skillet over low heat for 2-3 minutes, stirring regularly.
Add pistachios and fennel seeds and toast for another minute, continuing to stir.
Add sesame seeds and peppercorns for another minute, stirring continuously. (Keep an eye on it to make sure it does not burn!)
Remove from heat and add toasted nuts and seeds to a food processor, along with remaining ground spices. Pulse into a crumble. (Do not let it blend into a paste or become too fine of a powder.)