STEP 9: CUT THROUGH THE SHOULDERS Use the tip of the cleaver to cut through the shoulder bones on either side, or use the poultry shears STEP 10: HALFWAY DONE! The backbone should now be completely separated from the whole breast Save it for stock STEP 11: SPLIT THE BREAST To split the breast, cut through either side of the breastbone until you hit the sternum Using your free hand, press down firmly on the blade until it cracks through the bone ... STEP 11: SPLIT THE BREAST To split the breast, cut through either side of the breastbone until you hit the sternum Using your free hand, press down firmly on the blade until it cracks through the bone