Add water to a pot and heat
Into a medium-sized bowl add flour harissa and salt (and extra ingredients for the variations), mix to combine
Stir in the hot water and mix thoroughly
The dough will seem dry at first, then continue to dampen with mixing
Form the dough with your hands to create a small loaf shape
Set dough in a bowl and cover with a top (loosely). Or, cover bowl with a damp cloth (cover completely)
Allow dough to sit for 10 minutes
Heat your comal/cast iron skillet/pan on medium-high heat
After the 10 minutes is up, begin breaking a part small portions of the dough (about 8-10 sections)
Shape the dough portions into balls, rolling them between your palms
Press your tortilla balls to 4-5 inches round
Heat your pressed tortillas on the skillet when warmed for about 1 minute on each side (until they form brown spots and slightly bubble)
Place cooked tortillas between 2 clean kitchen cloths- to retain heat and shape
Serve immediately, warmed