First, heat a pan. Sauté shallots or onions there.
Add garlic and cherries to the pan. Let them cook until the cherries become soft.
Pour balsamic vinegar, red wine, and honey or maple syrup into the mixture.
Next, add salt, black pepper, and thyme or rosemary to the pan.
Let the sauce simmer on low heat for 10 to 15 minutes.
Mash the cherries and add cornstarch slurry at last.
Taste the sauce and adjust flavors if required.
After the sauce cools down, store it in a clean glass jar, then in the refrigerator.