01 - Whisk together flour, salt, and instant yeast in a large mixing bowl until thoroughly blended.
02 - Add grated cheddar to the flour mixture and toss to distribute evenly throughout.
03 - Pour lukewarm water into the bowl and mix with a wooden spoon or spatula until a shaggy, sticky dough forms.
04 - Cover the bowl tightly with plastic wrap or a clean towel. Let dough rise at room temperature for 3–4 hours until doubled in size with bubbles on the surface.
05 - Preheat oven to 450°F. Place a Dutch oven or heavy pot with lid inside to heat for at least 30 minutes.
06 - Lightly flour work surface and hands. Turn dough out, shape into a round loaf, and place on parchment paper.
07 - Cover with a towel and let rest for 20–30 minutes while oven continues heating.
08 - Using oven mitts, remove hot pot from oven. Lift dough with parchment paper and lower into the pot.
09 - Cover with lid and bake for 30 minutes.
10 - Remove lid and bake another 10–15 minutes until crust is deep golden and loaf sounds hollow when tapped. Transfer to wire rack and cool at least 30 minutes before slicing.