How long does choux pastry take to bake?

Choux pastry produces hollow puffed shells through steam expansion — not yeast, not chemical leavening, just water vapor. Eggs, butter, flour, and water create a paste that explodes into hollow cavities in the oven. The bake has two distinct phases.

Phase 1 — Puff (high heat): - 425°F (220°C) for 12–15 minutes - Water in the dough flashes to steam - Shells expand 2–3× original size - DO NOT OPEN OVEN — cool air collapses the puffs

Phase 2 — Dry (lower heat): - 350°F (175°C) for 15–25 more minutes - Interior moisture evaporates - Shells stabilize, golden brown forms - Total time depends on shape size

Standard timing by shape: - Profiteroles (small, ~1" diameter): 25 min total (12 high + 13 low) - Cream puffs (medium, 1.5"): 30 min (15 high + 15 low) - Éclairs (long, 4"): 35 min (15 high + 20 low) - Paris-Brest (ring): 40 min (15 high + 25 low) - Gougères (cheese choux, small): 22 min (12 high + 10 low) - Croquembouche pieces (1.25"): 28 min (15 high + 13 low)

The "done" test: - Deep golden brown on top AND bottom + sides - Sounds hollow when tapped - If pale → underdone, will collapse - One trick: pierce one with a knife at minute 25, return to oven for 5 more if interior is still wet

Don't open the oven door for the first 15 minutes. Choux's puff is from rapid steam — any cool air rushing in collapses the shell permanently. Watch through the glass.

Common issues: - Flat shells: piped too thin, OR opened oven too early, OR not enough egg in dough - Cracked tops: oven too hot OR shells touched on the tray - Collapsed after baking: not baked long enough at lower temp (dry phase) - Soggy bottoms: cool too fast on hot tray — transfer to rack immediately

Cooling/storing: - Immediately pierce a small hole in each shell with a knife to release steam - Cool on wire rack - Fill SAME DAY (filled shells get soggy within 4 hours) - Unfilled shells freeze 1 month; reheat 5 min at 350°F to crisp

Most published references (Julia Child, Bo Friberg, Pierre Hermé, J. Kenji López-Alt) converge on the 2-phase bake: hot puff + warm dry.