Combine the water, salt, and starter. Mix well.
Then add the flour, 1 cup at a time, stirring after each addition. When you reach 4 cups, stop and evaluate the dough. You want a shaggy dough—a little thicker than cake batter, but it won’t be a smooth dough like when making bread. Add additional flour a few tablespoons at a time until it’s a nice, thick consistency.
Now dust flour on top to cover the surface. This protects the dough and prevents a hard crust. Cover with a flour sack towel and place in a warmish spot. About 8 hours later, your dough is ready for making biscuits!
Are you ready? If not, flip the dough and give it a quick knead to work in the flour. Sprinkle with another dusting of flour, cover with a lid (it doesn’t need to be tight fitting, even your flour sack towel with a plate on top will work) and move to the fridge. The cold will slow down the souring. You can make your biscuits up to 48 hours later.
When you are ready to cook, heat a thick-bottomed skillet or griddle over medium heat.
While the skillet is heating, move the dough around to incorporate the flour on top. You’re not really kneading it, just blending.
Once the flour is mixed in, pull off a chunk of dough. You will form your biscuit into a disc that looks like an English muffin and is about the same size. You can form this on a floured surface or free form using your hand. Once formed, set aside on a plate or scoot to the edge of your floured surface.
When you’ve used all the dough to make your biscuits, check your skillet. You want it medium to medium-high heat. With your hand about 5 inches above the skillet, you should be able to comfortably hold it there for 3 or 4 seconds.
Add a little healthy fat (butter, coconut oil, tallow, or lard) to grease the skillet. Gently place the biscuits in the skillet, leaving space between for flipping.
Set your timer for 5 minutes. When the time is up, flip the biscuits and set for another 5 minutes. Flip once again, setting your timer for 3 minutes. Remove from the heat. Repeat with any remaining biscuits.
Once all the biscuits are cooked, carefully slice in half. Return the sliced biscuits, cut side down, to the skillet to toast. This takes 3 to 5 minutes.
Enjoy slathered in butter and topped with honey or jam. Rustic Biscuits also make fabulous sandwich bread or hamburger buns. Store leftovers in a container on the counter or in the refrigerator.