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Tags and nutritional info are auto-generated and may be inaccurate. Always check the full ingredient list before cooking.
Bloom the yeast with warm water, olive oil and sugar for 10 minutes.
Mix flour and salt, add the yeast mixture, and combine into a shaggy dough. Rest for 15 minutes.
Perform 3 rounds of stretch & folds with 30-minute rests between each.
Cold-proof overnight or for 1–2 hours at room temperature.

Divide into 2 rolls, dust with flour, and bake at 220°C conventional / 200°C fan for 20–25 minutes until golden.

Cook the onions with oil, butter, garlic, thyme and salt until soft, then add balsamic vinegar and continue cooking until deeply caramelised.

Mix the mayo, chilli oil crisp, gherkins, pickle juice, Worcestershire sauce, salt and pepper well.
Season the steak right before hitting the pan, or dry-brine overnight on a wire rack for a next-level crust.
Sear on high for 3–4 minutes per side, flipping every minute for an even cook. Pull the steak off the heat and let the pan cool down.

Baste with butter, garlic and thyme on low heat. Pull the steak off the heat about 5 degrees before your target temperature.

Rest for 5–10 minutes. The carryover heat will bring it up to your perfect doneness. Slice and assemble on toasted ciabatta with spicy sauce and caramelised onions.

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Use 2–3 brown onions for the caramelised onions.
Dry-brine the steak overnight on a wire rack for the best crust.
Can I use store-bought ciabatta?
Yes, store-bought ciabatta can be used if you're short on time.
How do I know when the steak is done?
Use a meat thermometer to check the internal temperature, or rely on the touch test for doneness.
Can I substitute the Kewpie mayo?
Regular mayonnaise can be used as a substitute for Kewpie mayo.
What cut of steak is best?
Ribeye or sirloin are great choices for this sandwich.
How long can I store the spicy sauce?
The spicy sauce can be stored in the refrigerator for up to a week.

