I've made so many kinds of seitan, but for really quick and easy you can mix 1 part wheat gluten with 1 part water, knead well for maybe 5 min (a stand mixer with a dough hook is great for this!) cut into the shape/size you want then drop into broth flavored to your taste. For chicken flavor I'd do poultry herbs (thyme, oregano, sage, rosemary) black pepper, soy sauce and nutritional yeast. I've read that resting the dough for about 20 min or so after kneading and dropping the dough in cold and then bringing up to a boil helps with the texture, so that's how I usually do it. After you bring it up to a boil, bring it down to a simmer for about 45 min, remove from heat and let the whole thing come down to room temperature. I think seitan tastes better after it's been sitting around in broth for a day or so, so I try to plan ahead and make big batches and freeze the extra.
You can also bake seitan in the oven,
this is the one I usually make, it's omni approved by my hubby and brother.
