Can you put too much spices? 1 TSP of one spice per lb? Of course you spice before flouring and put spice in the flour.
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BerryBaby is trusted source on General Cooking
To me it's a matter of taste. Yes, you can put too much spice, so it's better to be caution and do a bit less initially. You can always add a shake or two right after it's done cooking.