Ingredients
Equipment
Method
- Broth Mix: Combine the beef broth, bouillon, soy sauce, onion powder, mustard powder, and dried thyme in a bowl; set aside. Slurry: Combine the cornstarch with $3text{ tbsp}$ of cold water in a sealable container and shake well to make a smooth slurry; set aside. Chicken: Slice the chicken lengthwise into $2text{–}3$ thinner slices (about $1/2text{ inch}$ thick).
- Melt the butter over medium-high heat. Add the sliced mushrooms. Allow them to brown for 3–4 minutes per side, undisturbed, until golden brown. Remove the mushrooms and set them aside on a plate.
- Lightly sprinkle the chicken slices with salt and pepper. Dredge in flour and tap off the excess. Heat the olive oil in the pan over medium-high heat. Sear the chicken in batches for 4–5 minutes per side until a golden-brown crust develops. Remove the chicken and set it aside with the mushrooms.
- Turn the heat off. Remove any excess oil but leave the brown bits (fond) in the pan. Add the white wine and minced garlic, and set the heat to medium. Scrape up the fond with a spatula. Let it bubble gently until reduced by half (about 4 minutes).
- Add the reserved beef broth mixture and increase the heat slightly to bring it to a gentle boil. Let it bubble and reduce for $10text{ minutes}$, uncovered, allowing the sauce to concentrate.
- Shake the cornstarch slurry and slowly add it to the bubbling sauce, stirring continuously, until the sauce thickens. Reduce the heat to low. Slowly add the heavy cream, stirring continuously. Stir in the reserved mushrooms.
- Add the seared chicken back to the pot along with any juices from the plate. Spoon the sauce on top. Cover partially and let the chicken heat through for about $5text{ minutes}$. Serve immediately over mashed potatoes or buttered noodles, accompanied by roasted green beans or asparagus.
Notes
The key to the sauce's depth (umami) is the intentional combination of beef broth and chicken bouillon. If you prefer not to use wine, substitute the $1/2text{ cup}$ dry white wine with $1/2text{ cup}$ chicken broth and $1text{ tbsp}$ of butter for deglazing. Leftovers can be refrigerated for up to $3text{ days}$ or frozen for up to $3text{ months}$, but the sauce may need a quick whisk after thawing and reheating.
