Heat olive oil in a skillet over medium-high heat.
Season chicken breasts with salt and pepper, then cook in the skillet for 6-7 minutes on each side until golden brown and cooked through.
Remove chicken from the pan and set aside.
In the same pan, melt butter and sauté garlic for 1–2 minutes until fragrant.
Add lemon juice and honey (if using), stirring to combine.
If using cornstarch, mix it with a little water to create a slurry and add to the sauce to thicken.
Return the chicken to the pan, coating it in the sauce. Simmer for 2-3 minutes to allow the flavors to meld.
Serve immediately, spooning sauce over the chicken.