Pulse ½ of the uni and the stick of
softened butter in a blender and puree until smooth.
Cook pasta according to instructions.
In a large serving bowl, toss the cooked
noodles with the uni butter, chives, cheese, and lemon juice until evenly
coated. Season to taste. Remember that the uni is salty so go easy on the salt.
Place remaining uni on top of pasta and
serve immediately.
