Video summary

What Makes A Chef’s Sauce So Good? Homemade Stocks & Broths

Main summary

Key takeaways

Cooking

Presenter / source

  • Cooking video titled “What Makes A Chef’s Sauce So Good? Homemade Stocks & Broths”
  • Presenter name is not clearly identified in subtitles.
  • Channel branding referenced: and-cooks.com (an “Essential scraper” appears).
  • No other external sources cited.

Beef stock (foundation for many sauces)

Ingredients (quantities given)

  • Beef bones: ~1 kg per 1 liter stock
    • The chef recommends bigger batches.
    • Bone weight implied for vegetable ratio: ~7.5 kg bones total, matching veg at ~15% by weight.
  • Veal bones: traditional, but noted as too expensive/hard to get
    • Substitute: beef bones
  • Bone types (preference)
    • Best: bones/joints/connective tissue with collagen (gelatin thickens sauce)
    • Less ideal: rib bones with meat but low collagen → thinner stock
  • Roast-tray veg/aromatics (for ~7.5 kg bones)
    • Onion: 200 g (keep skin on; remove the root/core part with mud)
    • Carrots: 500 g
    • Celery: 780 g
    • Garlic: 1 head, split in half (exact amount otherwise unclear)
    • Tomato paste/purée: ~3 tbsp
    • Bay leaf: 1
    • Thyme: “half of this bunch” (exact amount unclear; thyme stalks)
    • Peppercorns: 20
    • Parsley: use parsley stalks only (amount unclear)

Equipment / setup

  • Oven: fan-forced 220°C (or 230–240°C if no fan-forced)
  • Large stock pot
  • Ladle / skimming jug (for clarity)
  • Fine sieve / strainer
  • Mason jar (to collect/render fat from roast trays)
  • Apron (messy straining)

Method (step-by-step with timings/technique)

  1. Roast bones (collagen development)
    • Preheat oven to 220°C fan (or 230–240°C).
    • Roast bones 30 min, flip, then roast another 30 min.
  2. Roast veg separately for color
    • Do not overcook veg with the bones.
    • Roast veg on the same tray, but only after bones come out.
    • Toss veg with:
      • a little olive oil
      • ~3 tbsp tomato puree/paste
    • Roast 20–25 min at 220°C until colored.
    • Onion technique: place onions flesh side down to color the skins.
  3. Prepare aromatics timing bowl
    • Bay leaf, peppercorns, garlic (split), parsley stalks + thyme stalks.
  4. Start stock with ice-cold water
    • Add bones to pot.
    • Shock with ice-cold water to help proteins/fats rise for easier skimming.

  5. Skim aggressively for clarity (key step)

    • Skim is most important during the first 45 minutes to 1 hour.

    • For the first 30 minutes: skim every 5–10 minutes then every 2–3 minutes during the remainder of the first hour.

    • Skim only the top layer—don’t remove the “liquid gold” underneath.

    • Keep the ladle clean using hot water so impurities aren’t reintroduced. 6. Cook time plan (10 hours total)
    • Total cook: 10 hours
    • After 8 hours: add roasted veg
    • After 9 hours (1 hour later): add aromatics
    • At 9.5 hours: turn heat off and let carryover cooking finish for the final 30 minutes 7. Rest & clarify
    • After heat-off, let it sit until settled (subtitles indicate the final half hour off the heat; additional settle time implied).
    • Do not pour out sediment: strain and “pull from the top.”
    • Yield/clarity notes:
      • Early strained liquid is clearer (used for French-style Borday sauce)
      • Later cloudier portion used for bone broth/gravy (less glossy)

Optional fat handling (from roast trays)

  • Collect rendered fat (mason jar).
  • Lift flavor from trays:
    • Heat tray/fond, add a little water to scrape browned bits
    • Add that back into the stock.
  • Remaining tray residue can be “dirtier” (no need to fully clean).

Storage (briefly mentioned)

  • Stock/sauces later: fridge 3–4 days max
  • Freeze: up to 6 months to a year (chef mentions vacuum packing)

Chicken stock (versatile)

Ingredients (quantities given)

  • Chicken carcasses: ~3 kg
  • Veg (15% of bone weight): ~0.5 kg total
    • 1 carrot
    • 1 onion
    • 1 celery stalk
  • Bay leaf: 1
  • Thyme: “a little bit”
  • Black peppercorns: as before (amount not specified)
  • Ice-cold water
  • Oil for roasting veg (no tomato paste)

Equipment / setup

  • Oven for roasting carcasses/veg
  • Stock pot
  • Fine sieve + ladle technique similar to beef stock

Method

  1. Roast chicken carcasses
    • Carcasses go into oven to roast (temperature/time not stated in subtitles).
  2. Prep veg
    • Remove onion root/core (like beef); slice celery and carrot.
    • Quarter onions (ideally keep root part together).
  3. Start with ice-cold water
    • Cover carcasses with ice-cold water.
    • Skim impurities, then bring to simmer.
  4. Simmer until opaque
    • Not rapidly boiling: “opaque” water with “little bubbles.”
    • Simmer time before veg: 2 hours
  5. Add roasted veg
    • After 2 hours, add roasted veg.
    • Roast adds caramelized notes.
  6. Add aromatics and finish
    • 1 hour after veggies: add aromatics (garlic, bay leaf, peppercorns, thyme)
    • Cook another 40 minutes
    • Turn off heat, let cool, then strain.
  7. Cool and settle
    • Chill 15 minutes so sediment settles.
    • Strain from the top using fine sieve.
  8. Storage
    • Leave uncovered at room temperature for a couple hours to cool safely, then fridge.

Bone broth (reduced, gelatin-rich)

Method

  1. Skim fat off the top of chilled stocks (chef skims before reduction).
  2. Bring to simmer and reduce slightly.
  3. Season during reduction
    • Salt: little
    • Vinegar: little (balancing; apple cider vinegar used)
  4. Storage
    • Fridge: 3–4 days max
    • Freeze: 6 months to a year (vacuum packing mentioned; otherwise freezer containers)

Demi-glaze

Inputs / quantities

  • Beef stock + chicken stock
    • Use most of the beef stock in the pan; save some for gravy
    • Add two ladles of chicken stock
  • Reduce by about four times (example target: ~1 liter from over 5 L combined)

Method

  1. Reduce until intensified and thickened
    • Takes about 1.5 hours
  2. Don’t over-reduce to final sauce thickness yet
    • Demi-glaze should be thicker than stock, not necessarily final sauce consistency
  3. Strain through a fine sieve (chef calls it habit)
  4. Cool and freeze as a base for Bordelaise / pan sauces

Note on “classic” vs chef’s version

  • Classic demi-glace is often described as:
    • 50% veal stock + 50% espagnole sauce
    • (espagnole = French beef stock thickened with dark roux)
  • Chef prefers his approach for purity and mouthfeel, while acknowledging historians/comments may disagree.

Bordelaise sauce (red wine + demi-glace + optional marrow)

Ingredients (quantities not fully specified; partial amounts given)

  • Red wine (Bordeaux-region style referenced; volume not stated)
  • Demi-glace (added after wine reduction)
  • Bone marrow (optional)
    • Use femur bones sliced down the middle
    • Blanch ~1 minute, then shock in ice-cold water
    • Dice small pieces
  • Marrow substitution
    • If skipping: use butter instead of bone marrow
  • Sweat/fond aromatics & veg
    • Wide pan
    • Beef tallow (or neutral oil), “not too much”
    • 2 shallots (finally sliced)
    • Half a carrot (diced)
    • Half a stick of celery (diced)
    • 2 cloves garlic (crushed)
    • Rosemary (small amount), thyme, parsley stalks (added at the end)
    • Beef scraps/offcuts for flavor
    • Pinch of salt

Method with timings/technique cues

  1. Prepare marrow (if using)
    • Soak marrow bones 24 hours in the fridge with cold water to remove blood
    • Blanch ~1 minute, shock in ice-cold water
    • Dice and keep chilled until the end
  2. Sweat aromatics
    • Wide pan on high heat
    • Render/smear beef tallow (or neutral oil)
    • Add beef scraps; add shallots + carrots; sweat
  3. Add harder herbs before deglaze
    • Add rosemary, thyme, bay + celery before wine
  4. Deglaze with red wine
    • Reduce wine “by a lot” until syrupy thick
  5. Add demi-glace
    • Simmer and reduce to desired thickness (chef references color + viscosity)
    • Turn off heat to protect parsley stalks
  6. Add parsley stalks
    • Stir in parsley stalks and let sit ~10 minutes
  7. Clarify/strain
    • Strain via fine sieve (“pull through”); cheesecloth mentioned as an extreme option but not used here
  8. Finish with bone marrow (emulsion)
    • If not serving immediately: cool and refrigerate; finish just before serving
    • Reheat gently (not rapidly boiling)
    • Whisk in marrow pieces 1–2 at a time until sauce is super glossy
    • Goal: marrow fat emulsifies without splitting

Suggested uses

  • Beef Wellington
  • Braised beef
  • Fillet of beef
  • Chef keeps Bordelaise/demi-glace base portions frozen in freezer pouches

Pan sauce (demi-glace + wine + butter)

Method

  1. After steak is cooked
    • Remove excess fat; leave a little
  2. Deglaze
    • Heat medium; deglaze with white wine
    • Color shifts to pale gray as fond comes off
  3. Add demi-glace (or stock)
    • Chef’s method: add demi-glace
    • Alternative: add beef stock (slower reduction) or chicken stock for chicken dishes
  4. Reduce to correct thickness
    • Like Bordelaise thickness, but not gravy-thick
  5. Mount with butter
    • Add butter one piece at a time, whisk until emulsified and not split
  6. Serve
    • Spoon over steak

Notes

  • For beef: beef stock or beef demi-glace
  • For lamb/chicken: chicken stock (per subtitle)

Gravy (make-ahead style; roux with fat + flour)

Ingredients (quantities given)

  • Fat: ~3 tbsp (from bones/stock day)
    • If no fat: use neutral oil
  • Beef trimmings: quantity not specified
  • Carrot: 1
  • Celery: 1 stick
  • Shallots: 3
  • Garlic: 5 cloves, crushed, skins removed
  • Tomato paste
  • Rosemary
  • Dark ale / stout: amount not specified
    • Chef emphasizes stout note
    • If you don’t drink alcohol: leave out or use a little juice
    • Mentions verjuice as an alternative (flavor profile differs)
  • Flour (roux/thickener): amount not specified (“stir in” as needed; possible extra teaspoon/tbsp amounts)
  • Beef stock (dilution/finishing)
  • Salt (near the end)

Method

  1. Heat fat (or neutral oil) until hot.
  2. Sear beef trimmings; lightly season; aim for hard char / lots of color.
  3. Add flour so it absorbs fat (activate roux).
  4. Add shallots + carrots and brown/color.
    • Chef wants some fond (even if fond is getting too burnt, adjust as needed).
  5. Deglaze with stout, scraping fond off the bottom.
  6. Add tomato paste + celery + garlic; reduce until thick.
  7. Thicken
    • Flour used as thickener
    • Gluten-free note: use starch at the end (dilute with water and whisk in)
  8. Add beef stock; bring to simmer; adjust thickness and mouthfeel.
  9. Season with salt close to final thickness
    • Chef warns roast beef may already be salty.
  10. Pass/finish
    • Pass through fine sieve; “tap” to avoid forcing bits through.
  11. Serving note
    • Chef says gravy can’t be truly tasted unless it’s on a big piece of meat.

Thickness options

  • If too thin: add more flour earlier (another tablespoon to 1.5 tbsp mentioned), or reduce more.

Special note for chicken roast gravy

  • Similar process:
    • Use dark chicken stock
    • Omit beef trimmings

Chef tips & common technique emphasis

  • Stocks are foundations: you can’t make great sauces without great stock.
  • Bone selection matters
    • Joint/connective tissue with collagen → gelatin (thicker)
    • Rib bones → thinner stock due to less collagen
  • Roast for color
    • Roast bones + veg, but stage timing carefully.
  • Veg timing is crucial
    • Veg gets bitter if cooked the full 10 hours
    • Add veg after 8 hours only.
  • Skimming is crucial for clarity
    • Aggressively skim first 45–60 minutes
    • Don’t reintroduce impurities (clean ladle)
  • Use wide pans for wine reduction
    • Evaporates faster
  • Bordelaise gloss rule
    • Whisk in marrow / ice-cold butter at the end to get gloss without splitting
  • Make a lot, freeze portions
    • “Backpack and freeze” stocks/sauces in portions for later use

Original video