1 1/2 oz finely grated parmigiano-reggiano cheese .
all-purpose flour, for dusting .
4 tbsps sliced fresh jalapenos, including seeds & ribs .
1 1/2 tsps salt
Directions
Step #1 Stir together yeast & 1 tbsp warm water in a small bowl; let mixture stand until foamy, about 5 mins.
Step #2 (If it doesn't foam, discard & start over with new yeast.
Step #3 ).
Step #4 Mix together flour, yeast mixture, oil, salt, & remaining 1x c warm water in bowl of mixer at lowish speed until a soft dough forms.
Step #5 Increase speed to medium-high & beat 3 mins more.
Step #6 Add jalapeño, 1 1/2 c Cheddar, & 1/2 c Parmigiano-Reggiano & mix until mixd.
Step #7 Scrape dough down side of bowl (all around) into center, then sprinkle lightly with flour.
Step #8 Cover up bowl with a clean kitchen towel (not terry cloth) to keep a crust from forming & let dough rise in a draft-free place at warm room temperature until doubled in bulk, 2 to 2 1/2 hrs.
Step #9 (Alternatively, let dough rise in bowl in refrigerator 8 to 12 hrs.
Step #10 ).
Step #11 Turn dough out onto a well-floured surface & carefully form into a roughly 11- by 8-inch rectangle with floured hands.
Step #12 Fold dough in thirds (like a letter) with floured hands (dough will be sticky), pressing along seam of each fold to seal.
Step #13 Put dough, seam side down, in an oiled 9- by 5-inch loaf pan.
Step #14 Cover up pan with same clean kitchen towel & let dough rise in a draft-free place at warm room temperature until dough completely fills pan & rises above it slightly, 1 to 1 1/4 hrs.
Step #15 Put oven rack in middle position & preheat your trusty oven to 400°F.
Step #16 Brush loaf with egg, then sprinkle remaining 2 tbsps Cheddar & remaining 1/4 c Parmigiano-Reggiano down center of loaf.
Step #17 Bake until bread is golden & sounds hollow when tapped on bottom, 50 mins to 1 hr.
Step #18 Run a knife around edge of pan to loosen loaf, then remove this from pan to test for doneness.
Step #19 Return bread (not in pan) to oven & turn on its side, then bake 10 mins more to crisp crust.
Step #20 Cool completely on a rack, about 1 1/2 hrs.