| 1 | Combine the flour, baking soda and salt in the container of a food processor. |
| 2 | Start blending while adding the butter cubes. |
| 3 | Continue blending while adding the yogurt. |
| 4 | Remove the dough and wrap it in wax paper or plastic wrap. |
| 5 | Chill thoroughly. |
| 6 | Preheat the oven to 400 degrees. |
| 7 | Lightly flour a clean surface. |
| 8 | Break off pieces of the dough and roll then into 10 to 12 rounds, each about 1 inch thick. |
| 9 | Place each round on the floured surface and roll until paper-thin. |
| 10 | Sprinkle with sugar or parmesan cheese. |
| 11 | Transfer the rounds to a baking sheet and bake 5 minutes. |
| 12 | Turn off the heat and let stand until the wafers are crisp and lightly browned. |
| 13 | Remove from the oven and let cool before serving. |
| 14 | yield: 10-12 wafers. |
