Remove the skin. Lay the breast bone side up. Using a sharp knife, cut through the cartilage at the V of the neck.
To remove the keel bone (dark spoon-shaped bone), bend the breast back un-til the keel bone breaks through the membrane. Run your finger under the edge of the keel bone; pull partially away from the breast and pull down to remove the white cartilage.
To remove the rib bones, insert the knife point under the long first rib on one side of the breast. Resting the knife against the bones, gradually scrape the meat away from the bones. Cut the rib away. Cut through the shoulder joint and run the point of the knife under the joint. Remove the shoulder joint. Repeat with the other side of the breast; run the point of the knife close to the bone. Remove the wishbone.