Sugar & CrumbsCookiecuturie Boxes & Desserts

Baker’s reference

Substitutions & Troubleshooting

Missing an ingredient, or your cookies didn’t come out the way you hoped? Here’s what we swap in our own kitchen, and how we fix the problems we see most often.

Ingredient substitutions

Every swap below is one we’ve actually baked. Change one thing at a time so you can taste the difference.

  • Browned butterMelted butter, cooledThe cookies still work, but you lose the nutty, caramel depth. Never swap in oil — the dough won’t hold its thickness.
  • Salted butterUnsalted butterIf you only have salted butter, reduce the added salt to a scant ¼ tsp.
  • Dark brown sugarLight brown sugar, or granulated sugar plus 1 Tbsp molasses per 100 gLight brown gives a slightly paler, crisper cookie. Dark brown is what keeps the centres soft and chewy.
  • Whipping cream (1 Tbsp)Evaporated milk, half-and-half, or full-fat milkIt’s only there for moisture. Skip it entirely if you must, but the dough will feel a little stiffer.
  • All-purpose flourMeasure-for-measure gluten-free blend with xanthan gumRest the dough overnight — gluten-free flour needs the extra time to hydrate or the cookies bake gritty.
  • Bread flourAll-purpose flourWorks fine; the cookie will be a touch less chewy.
  • Eggs2 Tbsp aquafaba per egg, or a commercial egg replacerFlax eggs make the dough heavy in a 90 g cookie — aquafaba holds the structure better.
  • White chocolateMilk chocolate, ruby chocolate, or extra chopped nutsUse a good bar chopped by hand instead of chips for those melty pools.
  • Pistachio pasteStore-bought pistachio cream, or almond butter thinned with 1 tsp oilStore-bought pistachio cream is sweeter — pull back the granulated sugar by 25 g.
  • Ube halayaJarred ube halaya from a Filipino grocer, or thick sweet potato purée plus ube flavouringIf your jarred halaya is loose, cook it down a few minutes so it doesn’t wet the dough.
  • Rainbow jimmiesAny jimmies-style sprinkleAvoid nonpareils (the little balls) — they bleed colour straight into the dough.
  • Vanilla sandwich cookie crumbsBirthday cake crumbs, shortbread crumbs, or crushed grahamKeep the pieces chunky so you still get crunch after baking.
  • Biscoff spreadAny speculoos cookie butterChill spread-filled dough well — warm filling leaks out in the oven.
  • Fine sea saltTable salt (use ¾ of the amount)For the finishing sprinkle use flaky salt, not table salt.
  • PecansWalnuts, almonds, or toasted oats for a nut-free versionAlways toast nuts first; raw nuts taste dusty next to browned butter.

Troubleshooting

Find your problem, then the likely cause and the fix for the next batch.

Cookies spread thin and flat

Likely cause

The browned butter was still warm, or the dough wasn’t chilled long enough.

The fix

Cool browned butter 15–20 minutes before mixing, and refrigerate the portioned dough overnight. Bake straight from the fridge onto a cool tray.

Cookies stayed domed and pale

Likely cause

Too much flour, or the oven wasn’t fully preheated.

The fix

Weigh your flour — cups pack heavy. Give the oven a full 20 minutes to preheat, and give the tray a gentle tap on the counter right out of the oven.

Dry, crumbly cookies

Likely cause

Over-measured flour or overbaking.

The fix

Pull the cookies at 12 minutes while the centres still look slightly underdone — they finish setting on the hot tray.

Cakey, bready texture

Likely cause

The dough was overmixed after the flour went in.

The fix

Fold only until no dry streaks remain. Mix-ins go in by hand, not with the mixer running.

Greasy cookies with butter pooling on the tray

Likely cause

Butter was reduced too far, or the sugar wasn’t fully blended into it.

The fix

Brown the butter just to golden with toasted milk solids, then mix it with both sugars until it looks like wet sand before adding eggs.

Burnt bottoms

Likely cause

A dark tray, or the rack sitting too low.

The fix

Bake on light-coloured trays lined with parchment, on the middle rack. Never bake on a tray that’s still hot from the last batch.

Cookies fused together

Likely cause

90 g portions placed too close.

The fix

Six per full sheet, with a good three fingers of space between them.

Browned butter tastes bitter

Likely cause

The milk solids scorched.

The fix

Use a light-bottomed pan so you can see the colour, stir constantly, and take it off the heat as soon as it smells nutty — it keeps cooking in the hot pan.

Dough feels too soft to portion

Likely cause

Warm kitchen.

The fix

Chill the bowl 20–30 minutes, then scoop. Wet hands slightly if the dough sticks.

Dough feels too stiff to portion

Likely cause

Over-chilled, or a touch too much flour.

The fix

Let it sit at room temperature 10–15 minutes, or work in 1 tsp of whipping cream.

Mix-ins sank to the bottom

Likely cause

The dough was too warm when the mix-ins went in.

The fix

Fold them in once the dough has come together and cooled, and press a few extra pieces on top of each ball.

Cookies went soft the next day

Likely cause

Stored while still warm, or stored uncovered.

The fix

Cool completely, then store airtight at room temperature up to 4 days. Warm for 3–4 minutes at 300°F to bring back the fresh-baked centre.

Ruthie’s golden rules

  • Weigh your ingredients — a kitchen scale fixes half of all cookie problems.
  • Cool the browned butter before the sugars go in.
  • Chill the portioned dough overnight, every time.
  • Bake at 350°F for 12 minutes and trust the soft centre.
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