Report Abuse. This isn't quite exact, but 1/4 cup of butter (so a half stick if you're in the US) is 57 grams according to the conversion chart from allrecipes below. So use just a slightly heavy 1/4 cup or 1/2 stick. By the way, a 1/4 cup is 4 Tablespoons.
Normally, this species is 57 to 95 cm (23â37 in) long, not counting a tail of 35â45 cm (14â18 in). The female is shorter than the male. The otter's average body weight is 7 to 12 kg (15.4â26.4 lbs), although occasionally a large old male may reach up to 17 kg (37 lbs). The record-sized specimen, reported by a reliable source but not verified, weighed over 24 kg (53 lbs).
They eat animals with shells, like clams and abalone, and use a stone to break open the shells. When sea otters are under water searching for food, they store what they have found in the loose skin folds at their armpits. Adult sea otters can eat 25%-30% of their body weight in one day! Sea otters in California are a threatened species due to past over hunting for their beautiful fur.