Flank vs Tendon — What's the Difference?
Quick Answer
Side-by-side
| flank | tendon | |
|---|---|---|
| Primal | flank | offal |
| Muscle / location | abdominal flank steak | Connective tissue at joints — particularly the hock/lower leg |
| Character | Long, fibrous abdominal cut; benefits from slicing across the grain. | Collagen-rich connective tissue extracted from the leg joints, particularly the Achilles tendon area. Extremely gelatinous when slow-cooked; provides body and sticky texture to braises and soups. Prized in Korean, Vietnamese, and South Asian cuisine for its chew and the richness it adds to broth. |
Key differences
- Different primals: flank vs offal.
- Texture and slicing: compare fibrous, grain-heavy cuts vs more tender steak-style muscles based on each cut’s description.
- Retail naming diverges by country—always map through a canonical cut when translating menus or labels.
When to use each
Flank
Pick Flank when you want its specific marbling/texture profile: Long, fibrous abdominal cut; benefits from slicing across the grain.
Tendon
Pick Tendon when its primal/muscle traits fit the dish: Collagen-rich connective tissue extracted from the leg joints, particularly the Achilles tendon area. Extremely gelatinous when slow-cooked; provides body and sticky texture to braises and soups. Prized in Korean, Vietnamese, and South Asian cuisine for its chew and the richness it adds to broth.
Flank and Tendon are different canonical muscles/primals: Flank is flank (abdominal flank steak); Tendon is offal (Connective tissue at joints — particularly the hock/lower leg).
Choose based on tenderness, marbling, grain direction, and how you plan to cook (sear vs braise vs slice thin).
Read the full guides: flank (what-is) · tendon (what-is) · flank hub · tendon hub