Ranpu (Rump / Sirloin Butt)
The Atlas
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Ranpu (Rump / Sirloin Butt)

tender · flavorful · fine grain · lean

About this cut

Ranpu represents the pinnacle of balance between Wagyu's signature sweetness and the deep, savory character of lean muscle. Derived from the sirloin butt, it offers a remarkably fine grain and a tender bite that retains a pleasant chew compared to the buttery texture of a ribeye. While leaner than primal loin cuts, its intricate intramuscular fat renders beautifully, delivering a clean, beef-forward profile that is highly prized by connoisseurs seeking both flavor and elegance.

Taste-DNA

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Marbling
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Tenderness
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Intensity
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Fat
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Price
Origin

Comprising primarily the gluteus medius and parts of the biceps femoris, this cut is located in the rump where the loin meets the hindquarter, resulting in a muscle that balances activity with tenderness.

Preparation

yakiniku grilling

Cooking Guide

For Wagyu Ranpu, a high-heat sear followed by a gentle finish to medium-rare (52-54°C) is ideal to prevent the lean fibers from tightening. Whether sliced thin for Yakiniku or prepared as a steak, ensure you slice strictly against the grain to maximize the mouthfeel of the fine muscle fibers. Allow for a generous resting period of at least five minutes to let the juices redistribute, ensuring a succulent and uniform finish.

Core Temperatures

rare
50°C
122°F
3 min
medium rare
56°C
133°F
5 min
medium
61°C
142°F
8 min
well done
71°C
160°F
10 min

Portions per Person

Starter
120 g
Main
250 g

To balance the clean, iron-rich profile and delicate fat, pair with an earthy Barbera d'Asti or a cool-climate Pinot Noir to provide bright acidity against the Wagyu richness.

Sommelier Tip