The easiest way to cook corn on the cob

Cooking corn in an Instant Pot delivers consistently tender, juicy kernels in a fraction of the time compared with traditional steaming or grilling. With just a few minutes under pressure, you get sweet, perfectly cooked ears without heating up the kitchen. This method is ideal when fresh, in-season corn is available, but it also works well with frozen ears when needed.

What you’ll need

This recipe is simple to assemble. Most of the ingredients go into the compound herb butter that brightens the flavor of each ear.

• Corn on the Cob: Choose ears with green husks and golden silks for the freshest flavor.
• Water: A small amount added to the pot creates the steam needed to pressure cook the corn.
• Butter: Salted or unsalted, softened to room temperature for easy mixing.
• Fresh parsley: Finely chopped to add a bright, herbal note.
• Seasonings: A simple blend of thyme, basil, garlic powder, salt and pepper complements the sweet corn.

Do you need to shuck the corn?

No—one great advantage of the Instant Pot method is that you can cook ears with the husks on or shucked. If you leave the husks in place, add about one minute to the cooking time.

Can I use frozen corn?

Yes. Frozen ears work well; increase pressure cooking time by about two minutes to ensure they heat through.

How to make Instant Pot corn with herb butter

The recipe has two straightforward parts: the herb butter and the corn. The butter can be prepared while the pot comes to pressure.

Prepare the herb butter

1. In a small bowl, combine softened butter, chopped parsley, thyme, basil, garlic powder, salt, and black pepper.
2. Use a fork or spatula to mix everything until the herbs are evenly distributed.
3. Cover and refrigerate the butter until ready to use.

Prepare and cook the corn

1. Place the metal rack or trivet in the bottom of the Instant Pot.
2. Stack ears of corn on the rack in alternating directions so they fit snugly. A 6-quart Instant Pot usually holds about six full ears.
3. Add 1 1/2 cups of water to the pot.
4. Close the lid and set the valve to sealing.
5. Pressure cook on High for 3 minutes, then perform a quick release.
6. Remove the corn, spread with the herb butter, and serve immediately.

How long does corn take in a pressure cooker?

On High Pressure, fresh corn typically cooks in 2–3 minutes. Keep in mind the Instant Pot also needs time to come up to pressure, which adds a few minutes to the overall process. Adjust the brief cook time slightly if you leave husks on or use frozen ears.

Tips for success

• Fit more ears: Break or cut ears in half if needed to maximize space. When using halves, stand them on end to fit more pieces.
• Quick release: Always quick release the pressure when cooking corn to avoid overcooking; natural release will continue to cook the kernels.
• Room-temp butter: Using softened butter makes it easier to create a smooth, spreadable compound butter.

Serving suggestions

Fresh corn on the cob is a classic summer side. Serve it with barbecue favorites like pulled chicken or pulled pork, cornbread, grilled chicken skewers, or a hearty potato salad. It also pairs beautifully with simple weeknight mains and makes a family-friendly addition to many meals.

Storing and reheating leftovers

Fresh corn is best the day it’s cooked, but you can store cooked ears for a few days and reheat them using any of these methods:

• Microwave: Reheat in a microwave-safe dish in 20-second bursts until warmed through.
• Oven: Wrap ears in aluminum foil and warm at 350°F (175°C) for 5–10 minutes.
• Stovetop: Bring a pot of water to a boil and drop the ears in for about 3 minutes.

Store cooked corn wrapped in foil or in an airtight container in the refrigerator for up to 4 days. Compound herb butter will keep about 5 days in the fridge and can be frozen for longer storage.

Freezing instructions

For long-term storage, remove kernels from the cob once cooked and cooled, then freeze kernels in a freezer bag for up to 12 months. To freeze compound butter, roll or wrap it tightly in parchment and store in a freezer-safe container for 2–3 months.

Ingredients

• 6 ears corn on the cob
• 1 1/2 cups water
• 1/2 cup butter, room temperature
• 1 tablespoon fresh parsley, chopped
• 1/2 teaspoon thyme
• 1/2 teaspoon kosher salt
• 1/2 teaspoon garlic powder
• 1/4 teaspoon black pepper
• 1/4 teaspoon basil

Instructions (summary)

1. Mix softened butter with parsley, thyme, basil, garlic powder, salt and pepper; chill.
2. Place the rack in the Instant Pot, arrange corn on the rack, and add 1 1/2 cups water.
3. Seal the lid and pressure cook on High for 3 minutes; quick release when done.
4. Brush ears with herb butter and serve hot.