How Long to Cook Acorn Squash
Acorn squash, halved and roasted.
The Short Answer
In the oven at 400°F, acorn squash takes 40–50 minutes. Scroll down for all cooking methods, detailed instructions, and tips from the Professor.
Cooking Methods
🔥 Oven
Temperature: 400°F
Time: 40–50 minutes
Rest: 5 minutes
Halve, scoop seeds, brush cut side with oil or butter. Place cut-side down for the first 30 minutes, then flip and fill with desired toppings.
⚡ Instant Pot / Pressure Cooker
Pressure: High
Time: 7–9 minutes
Release: Quick release
Halve and seed. Place cut-side up on trivet with 1 cup water. 7 minutes for tender, 9 for very soft. Add butter and brown sugar after cooking.
Cut side DOWN for the first phase of cooking. This steams the flesh from its own moisture, then flipping exposes it to dry heat for caramelization.
Frequently Asked Questions
No. The skin softens during roasting and is edible. Scoop the flesh out of the skin with a spoon, or eat the whole thing.
The Bottom Line
Acorn Squash is straightforward to cook when you know the time and temperature. Use the method that fits your equipment and schedule, and always let the food rest before cutting or serving. Resting allows juices to redistribute and carryover cooking to finish the job.
Source: Culinary reference | Last verified: March 19, 2026 | Our methodology