Make the spice salt: Put peppercorns, cloves, allspice and sage in a spice mill or mortar and grind to a powder. Remove to a bowl and stir in salt. Season pork chops on both sides with salt mixture. (There will be some salt mixture remaining; use it to season the sauce, Step 4.) Cover and leave chops at room temperature to absorb seasonings for at least 30 minutes.
Peel, quarter and core apples, then cut each apple into 12 wedges. Melt 1 tablespoon butter in a wide skillet and raise heat to medium-high. Add apple wedges in one layer and brown gently on one side, about 2 minutes. Brown on the other side and cook for 2 minutes more, or until apples are cooked through but still firm. Remove apples from pan and keep warm.