Pumpkin chocolate chip cookie bars
Brown butter, pumpkin and warm spice. No eggs, so the bars stay dense and chewy.
Formula
% · flour = 100Teaspoon amounts are converted to grams; weigh them on a 0.1 g scale.
Salt by weight: 1 tsp Diamond Crystal ≈ 3 g. Other brands are denser by the spoon.
† Doesn’t scale in a straight line. Past 2×, trial spices and leavening first.
| Ingredient | % | Grams | Scaled × | |
|---|---|---|---|---|
| A Brown butter | ||||
| Unsalted butter · weigh before browning | 53.1 | 170 | ||
| B Wet | ||||
| Light brown sugar · packed | 120.3 | 385 | ||
| Pumpkin purée · not pie filling | 53.1 | 170 | ||
| Vanilla extract † | 2.5 | 8 | ||
| C Dry | ||||
| All-purpose flour | 100.0 | 320 | ||
| Ground cinnamon † | 1.6 | 5 | ||
| Baking soda † | 1.9 | 6 | ||
| Baking powder † | 1.3 | 4 | ||
| Kosher salt · Diamond Crystal | 0.9 | 3 | ||
| Ground ginger † | 0.6 | 2 | ||
| Ground cloves † | 0.2 | 0.5 | ||
| Ground nutmeg † | 0.2 | 0.5 | ||
| D Chocolate · bittersweet or semisweet chips, check label | ||||
| Chips, into the dough | 67.5 | 216 | ||
| Chips, on top | 12.2 | 39 | ||
| Total dough | 415.3 | 1,329 | ||
Method
Tick each step as done- 01
Brown butter. Melt in a light saucepan, stirring, until foamy, light amber and nutty.
3–4 min
after melting - 02
Cool. Scrape the butter and browned bits into a large bowl. Cool until warm, not hot.
20 min
Warm - 03
Prep. Heat the oven. Grease the pan and lay a parchment sling over the long sides (fig. 1).
—
165 °C 325 °F - 04
Wet. Whisk part B into the butter until smooth and glossy.
1 min - 05
Dry. Add part C and stir just until no flour pockets remain. Stir in the dough chips.
—
Don’t overmix - 06
Press. Press into an even layer with oiled hands. Press the top chips in.
—
39 g on top - 07
Bake. Until puffed and lightly browned; a skewer shows moist crumbs or melted chocolate.
30–45 min
165 °C 325 °F - 08
Cool + cut. At least 1 h in the pan. Lift out by the sling and cut 6 × 4 (fig. 1).
1 h
24 squares
Cut map
Drawn to scaleDone when
And how it keepsTrials
Change one variable per trialB tests the altitude rule for 4,700 ft.
| Variable | Trial A | Trial B | Trial C |
|---|---|---|---|
| Date | |||
| Change | As written | Soda + powder −20% | Half sheet, × 1.75 |
| Bake time | |||
| Staff rating 1–5 |
Revisions
Newest last| Rev | Date | Change | From |
|---|---|---|---|
| Rev 01 | 2026-09-26 | First issue, adapted from NYT Cooking | — |
| Rev 02 | 2026-09-27 | Revisions and batch log on page 3 | Review |
| Rev 03 | 2026-09-28 | Generated cut map | Review |