In a medium mixing bowl, combine the flour, yeast, sugar, salt, and water, and mix with a wooden spoon until the dough forms a shaggy mass.
Scrape the dough onto a clean, unfloured work surface and knead for 6 to 8 minutes. This is a very sticky dough because it has a lot of water in it relative to the flour. Professional bakers refer to this as having a high hydration. Don’t add flour! This high hydration will help to create those nooks and crannies, which are the trademark of an English Muffin. Initially you can knead it in the bowl if you like. As it comes together, you can move to kneading it on the work surface.
Place the kneaded dough into a medium mixing bowl or container, lightly coated in oil or non-stick cooking spray, and cover with plastic wrap or a tea towel. Let rise at room temperature until doubled in size, about 1 1/2 hours.
Turn out the fermented dough onto a lightly floured work surface and divide the dough into 10 equal pieces (Each one will weigh about 2.25 oz [75g])
Shape each piece into a small round, as if you were making a dinner roll, and place on a baking sheet dusted with cornmeal, several inches apart. Let the rounds rest for 10 minutes.
Lightly dust the tops of the dough rounds with flour. Use the palm of your hand or a flat tool, like a spatula, and press each dough round down into a disc 3 in (7.5cm) in diameter. Dust the tops with cornmeal for a nice garnish at the end of the baking and enough to stop the plastic from skipping in the next step.
Cover all the disks loosely with plastic and let them proof for 45 minutes to 1 hour. To assess if the dough is optimally proofed, flour a finger and poke it gently into a dough disk; if the indentation holds its shape, the dough is ready for the next step.