Hmmm, I find out something new every day. Out of curiosity, I did a search on 'peppersalt' and found it as a 'made' ingredient in several Chinese dishes. It's simple, somewhat:
Peppersalt
2 Tbsp Salt
2 Tbsp Szechuan peppercorns
Heat a medium saucepan over medium-low heat 1 minute. Add peppercorns and stir-fry 5 minutes. Remove saucepan from heat and let cool. Grind peppercorns into a fine powder with a mortar and pestle or pepper grinder. Add salt; mix well. Store in a tightly convered container. Makes about 1/4 cup.
The szechuan peppercorns are the kicker, I guess, they're actually not a peppercorn, but from a different plant entirely:
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Sichuan pepper and others (Zanthoxylum piperitum, simulans, bungeanum, rhetsa, acanthopodium)
Used plant part
Dried fruits. The aroma and, if present, also the pungency reside in the mostly brown fruit wall (pericarp, �shell�), not in the deep black seeds. Often, the seeds are omitted. I have repeatedly read that the seeds have bitter taste, but was never able to find that for myself. A better reason to remove them is their unpleasant, gritty texture that almost feels like sand between the teeth.
The Korean species Z. schinifolium has aromatic seeds which are preferred for usage, although the pericarp could also be used, as the flavours are the same.
The spice as commercially available very often contains significant amounts of stem material, mostly the very tough and pointed thorns, which can be harmful if swallowed; it's best to remove them before usage.
In Japan, young leaves of the Sichuan pepper tree are used fresh, both as flavouring and decoration (kinome or konome [木の芽, きのめ, このめ]).
Plant family
Rutaceae (citrus family).
Sensory quality
The dried fruits of sichuan pepper and its relatives have an aromatic odour that, for most species, can be described as lemon-like, with more or less pronounced warm and woodsy overtones. Some of the species have deviating flavour, e.g., Z. alatum (spicy) and Z. avicennae and Z. schinifolium both of which have an anise aroma.
The taste of most species is pungent and biting; it may take some time to develop, but in the end produces a strangly numbing, almost anaesthetic feeling on the tongue. Again, Z. schinifolium is an exception because it has only small pungent quality.
Sichuan pepper (Z. piperitum) leaves have a fresh flavour somewhat in between of mint and lime.
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This was from Gernot Katzer's spice pages at
http://www.uni-graz.at/~katzer/engl/index.htmlit's a really good resource on spices. I'd use the stuff sparingly, I just bought some of the Sichuan pepper, and he's got the taste dead on. As for the cereal filler, if rusk is already in the sausage, I'd say try things without additional filler and see what develops.