The impromptu Peruvian oven that is is built in the Peruvian highlands to bake potatoes can easily be adapted to bake bread. While the Peruvian watia dome is heated and then collapsed onto the potatoes, one can use the form to bake bread the usual way.
The Peruvian potato oven is constructed in situ with sod or weedy soil. If your soil has a high clay content then using clumps of soil that are already bound with roots is more or less equivalent to building a cob or adobe oven. I don’t know how big a dome one can build out of sod but if one doesn’t have a weedy field to dig up I imagine the following experiment: seed a prepared bed of clayey soil large enough to construct the dome of an oven that is three feet (1 meter) in diameter with grass and when the grass is well established shovel clumps to build an oven as illustrated below. Continue reading “Peruvian Watia Oven made with Spaded Soil”