Step 1: Start with a whole rump from the butcher (or mobile butcher) and a knife.
STEVE BAIN says home butchery can be approached fairly simply and economically.
Shop around and you’ll likely find whole rumps for sale much cheaper than rump roasts and/or rump steaks.
All it takes is a sharp knife to save some money.
And the following method, I reckon, is the simplest approach to home butchery.
Step 2: Flip the rump over to expose the seams (which are the joins between the muscles/meat).
Step 3: Use the tip of the knife to cut away the ‘lard’.
Step 4: Much of the lard can be peeled back and will lift away from the meat without any knife-work. Here and there you may need to flense the lard away from the lump of rump.
Step 5: Keep trimming and peeling away to remove the lard. The lard has many uses, including in sausages and/or casseroles.
Step 6: Now we start on an internal seam (this time to remove the piece known as the rump cap, and also known more recently as the picanha).
Step 7: Here the knife points to the seam into which we will ‘dig’ in order to separate the picanha from the remainder of the lump o' rump.
Step 8: Like we did with the lard, stick your fingers down into the seam and peel the lumps of meat on either side apart.
Step 9: Rolling the roasts apart.
Step 10: On the right as you look at the picture is the picanha/rump-cap removed from the rump.
Step 11: Trim the fat flap away from the rump cap.
Step 12: Continue to break down the lump of rump. Again the knife points to a seam.
Step 13: To remove another roast, start by cutting through the thin surface membrane to expose the seam (the seam of fat).
Step 14: Using your fingers, pry the seam apart to a depth as deep as you can without using a knife.
Step 15: Now cut straight down through the lump of meat; cut fully through from the seam that you’ve started all the way to your cutting board/butcher’s block.
Step 16: Another roast cut away from the lump o' rump; this roast weighs 750 to 800 grams (family sized).
Step 17: Now cut the remaining piece into two roasts that weigh about 850 grams. These two roasts will contain some more of the connective and seam tissue; accordingly they are typically cooked slower using a ‘wet’ roasting technique.
Step 18: Three roasts (plus the picanha which is not shown in the photo) from the rump.
