For the pork chops:
Pat the pork chops dry and season well. Heat a large frying pan over high heat. Using tongs, hold the chops fat-side down and cook for 2 minutes, searing until the fat renders and caramelises. Then lay flat and sear for 2 minutes per side. Remove and set aside. Reduce the heat to medium and add the olive oil if needed. Add the onion and cook gently until softened and lightly caramelised. Add the garlic, thyme and rosemary and cook for 2 minutes. Deglaze the pan with the red wine and simmer for 5–8 minutes until reduced by half. Stir in the cherry preserve and season to taste. Return the pork chops to the pan and cook for a further 6 minutes, turning and spooning the glaze over them.
To serve:
Serve the pork chops on a platter, spoon over the cherry glaze and garnish with fresh cherries and sliced cherry plums (if available).