Chard and potato gratin (Slideshow version)
Stage 12/12 : 30 min.
Bake for about 30 minutes, watching for browning. If necessary, pop under the grill to finish browning before serving.Remarks
For a quicker version, use thick cream or crème fraiche instead of the bechamel.If the potatoes are not already cooked for stage 6, peel and slice them, then boil in the same water.