1 cup all-purpose flour, more as needed
1/2 teaspoon salt
1/2 cup finely grated fresh Parmesan cheese
1/2 cup shredded cheddar
4 tablespoons unsalted butter
1/4 cup cream or half-and-half, more as needed
Heat oven to 400 degrees. Line a baking sheet with parchment paper or lightly dust with flour.
1. Put flour, salt, cheese and butter in bowl of a food processor. Pulse until flour and butter are combined. Add about 1/4 cup cream or half-and-half and let machine run for a bit; continue to add liquid a teaspoon at a time, until mixture holds together but is not sticky.
**Be careful. I added too much cream and had to add more flour.**
2. Roll out dough on a lightly floured surface until 1/2-inch thick or even thinner, adding flour as needed. Transfer sheet of dough to prepared baking sheet (drape it over rolling pin to make it easier). Score lightly with a sharp knife, pizza cutter or a pastry wheel.
3.Sprinkle with salt or other topping if you like. Sea Salt, Sesame Seeds, Caraway Seeds, whatever you'd like (I would brush with a little butter or milk first so it will stick)
**I missed this step and they really didn't need it. :-) **
4. Bake until lightly browned, about 10 minutes.
Cool on a rack; serve warm or at room temperature or store in an airtight container for a few days.