Preheat the oven to 375°F (190°C). In a large skillet, melt 2 tablespoons of butter until it begins to brown.
Sprinkle salt and pepper on both sides of the chicken breasts.
Add the chicken breasts to the skillet with the melted butter and sear them on both sides for about 2-3 minutes per side until they are nicely browned.
Remove the chicken from the skillet and place it into a roasting dish.
Arrange the pierogies around the chicken breasts in the roasting dish.
Without cleaning the skillet, add the remaining 2 tablespoons of butter.
In a separate bowl, whisk together the honey, lemon juice, minced garlic, and rosemary.
Pour the mixture into the skillet with the melted butter and bring it to a simmer.
Reduce the heat and let the sauce thicken for 3-4 minutes.
Pour the sauce over the chicken and pierogies in the roasting dish.
Cover the roasting dish with a lid or foil and place it in the preheated oven.
Bake for 20-30 minutes or until the chicken reaches an internal temperature of 160°F (71°C).
Serve the German rosemary & honey chicken alongside the pierogies. Enjoy!