The ornamental design for a circulatorcooker, as shown and described.
FIG. 1 is a top front isometric view of an a circulator cooker showing our new design;
FIG. 2 is bottom rear isometric view of the circulator cooker of FIG. 1; and,
FIG. 3 is a front isometric view of the circulator cooker of FIG. 1; with the rear and side views being identical thereof.
The broken lines in the drawings are for the purpose of illustrating unclaimed portions of the circulator cooker and form no part of the claimed design.