Instant Pot Rotisserie Chicken Tortilla Soup. Turn a rotisserie chicken into Tortilla Soup using my secret weapon: Instant Pot chicken broth, made from the rotisserie chicken carcass.

I have rotisserie chicken left over from a party. (When you write a rotisserie cookbook, people expect rotisserie chicken. And I'm happy to oblige!) It's time to bring out my secret weapon - homemade pressure cooker chicken broth - and use that leftover chicken to make Instant Pot Rotisserie Chicken Tortilla Soup.
Now, I am a fanatic, rotisserie grilling my own chickens. But a store-bought rotisserie bird works great in this recipe. (I use store-bought rotisserie chickens all the time.) Or, use leftovers from a roast chicken, no rotisserie necessary. If you have a chicken's worth of roasted bones and a few cups of leftover meat, you're good to go.
My Mexican broth is a lot like my regular rotisserie chicken broth, with a hint of allspice and a dried chile to add flavor. The big change is in the soup itself. I pressure cook the basic broth with sautéed onions and crushed tomatoes. Then I let everyone build their bowls with shredded chicken, hot peppers, cubes of cheese and avocado, and a sprinkling of crunchy tortilla strips and minced cilantro. Pour the red broth on top, and you have an amazing soup from the borderlands between Mexico and the US.
Ingredient Notes and Substitutions
Rotisserie chicken: All you need is the carcass from a roast chicken, and a few cups of shredded meat. Store-bought rotisserie chicken, leftover roast chicken, whatever you have will work fine.
Uncooked whole chicken: If you have a whole chicken, use it to make my Pressure Cooker Chicken Broth and Shredded Chicken instead of the rotisserie chicken broth below. Then, use the shredded chicken in the soup to replace the shredded rotisserie chicken breast.
Broth: Homemade broth is by far the best choice - and as you can see below, very easy - but if you can use store-bought broth if you have to. (Just get low-sodium chicken broth.) Or, use up some broth from another meal - I make homemade chicken broth for the freezer, and then all I need is a little leftover chicken to make this recipe.
Broth flavorings: The broth is a variation on my Instant Pot Rotisserie Chicken Broth, with a few extra ingredients added in to give it a Southwestern taste. But, regular chicken broth is fine - if you don't have the allspice or chile de arbol, just skip them.
Chicken breast: If you're not using the breasts from a rotisserie chicken, any leftover chicken will do - as will pre-cooked chicken breast bought from the grocery store. If you have to use raw chicken, cut it into ½-inch strips by 2-inch strips (aka "stir fry cut" chicken breast) and add it to the pot when you pressure cook the soup.
Tortilla strips: Finding tortilla strips was trickier than I expected. (My grocery store keeps them in the salad dressing aisle, next to the croutons, not in the chips aisle with the tortilla chips.) The easy substitute for tortilla strips is to hand-crumble regular tortilla chips. If you have a bag that's mostly empty, all the broken pieces on the bottom are a perfect substitute for the strips.
Avocado, Queso Fresco, and sliced Jalapeños for the soup: These are my favorite add-ins for the soup, but add your favorite tortilla soup ingredients. Rice is a good add-in, or replacement for the tortilla strips. Minced green onions are another good topping. If you think it will go well in the soup, try it!
Frequently Asked Questions
Why the additional "pressure cook the soup" step?
Why do I add the "pressure cook the soup" step? It's to simmer the onion, garlic, and tomatoes with the broth and bring them all together. (On a stovetop I'd simmer for 30 minutes to an hour for the same result.)
Make ahead
Do step 1 (pressure cook the broth) ahead of time, and you can refrigerate the broth for a few days, or freeze it for a few months. The rest of the recipe is quick enough to be a weeknight dinner.
Leftovers
This soup makes great leftovers - I freeze it in 2-cup containers for future microwave-and-serve lunches.
Related Posts
I make lots of chicken soups that start with Instant Pot Rotisserie Chicken Broth, like my Instant Pot Rotisserie Chicken Noodle Soup, Instant Pot Chicken and Wild Rice Soup, or Instant Pot Chicken Pot Pie Soup (with Rotisserie Chicken Broth).
For other Mexican-inspired chicken preparations, try my Pressure Cooker Mexican Chicken Soup in Red Chile Broth (Caldo de Pollo Rojo), Pressure Cooker Chicken Tacos, or Instant Pot Chicken Legs and Rice (Arroz con Pollo).
If you're looking for more ideas, check out my Instant Pot Pressure Cooker Recipes index.
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