少々＝『ひとつまみ』くらいだと思います！ A pinch of sugger!! I think...

Thank you, i just found that 少々 is 1/8 of a teaspoon.

少し：　thing a liquid of tiny protion also use in the time morments very short time as use in follow a: hydrocyanic poison can kill a person tiny prosion 青酸毒物は少しの量で人を 殺せる The train can see approch it came short time 　電車が見える　少しの時間ここに来るね Like as I say in the sample sentence cant say how grams it is alrealy big poison mil gram order use this suger and baking powder so one pinch is right but might sugggest very small porsion like less than one gram it might to close to you wants