Unusually for a ski tour your day begins downhill from the hut, after a flattish section. Avoid the narrow path you came up on but take the L side of the Chardonnet streambed to the N of the hut, which is far more open. From the valley floor take the main track that leads in the direction of the Drayeres Hut. In really bad weather, or when looking for an easy day, you could go straight to the hut. Much more interesting is to take one of the side valley options. Either way skin up past the lovely Laval Hut (a great place to stop for a coffee/stay the night if the Chardonnet Hut is full). Shortly after here one option is an obvious circular loop above the Lac de Beraudes, below the Pointes des Cerces, or alternatively as shown, continue a little further up the valley.
Cross the stream (snow bridge normally) and head up the streambed known as the Riou Blanc, aiming for the obvious unnamed col between the Pain de Sucre and the Pointe de Riou Blanc. Descent straight to the Drayeres Hut is possible from here, but more interesting is to continue NW down easy slopes, then an undulating skin again, past 2 frozen snow-covered lakes then S to the Col des Cerces. It is worth continuing 2 minutes beyond the col to a rocky outcrop to its SSE, from where there are outstanding views of the Grand Galibier and the Pointes des Cerces, 2 of the more challenging ski peaks of the area. Optional extras, not involving much more time, would be to visit the nearby Col des Rochilles or one of 2 cols to the N of nearby Lac Rond. Backtrack past where you had previously put your skins on, skiing on the L bank of the Claree streambed, down to the Drayeres Hut.