I start by melting the butter and olive oil together in my stockpot over medium-high heat. Once it's shimmering, I toss in the onion, celery, and carrots and let them soften for about five minutes. This step wakes up all the natural sweetness in the vegetables before the broth goes in.
I stir in the minced garlic once the vegetables have softened and let it cook for just thirty seconds. Garlic burns fast, so I keep the spoon moving the whole time. This short cook releases the aroma without turning it bitter.
Next, I pour in the chicken stock along with the bay leaf, thyme, and parsley. I give everything a good stir, then bring the pot up to a gentle boil. This is where the broth really starts smelling like the real deal.
Once it's boiling, I drop the heat down to a low simmer and let it cook uncovered for about fifteen minutes. This gives the vegetables time to turn tender and lets all those herbs infuse the broth. I taste and adjust the salt and pepper here.
I stir in the egg noodles and let them cook right in the broth for about seven to nine minutes, or until they're just tender. Cooking them directly in the pot lets them soak up extra flavor instead of tasting bland and separate.
As soon as the noodles are done, I remove the pot from the heat and fold in my shredded rotisserie chicken. Since it's already cooked, it only needs a few minutes to warm through in the hot broth. This keeps the chicken tender instead of rubbery.
Before serving, I always give the broth one more taste and adjust the seasoning if needed. I ladle it into bowls and finish each one with a sprinkle of fresh parsley. That last touch makes it look just as good as it tastes.