Can You Cook Polenta in a Rice Cooker? Yes, Here Is How

Quick answer: Yes, you can cook polenta in a rice cooker. Use about 1 cup of coarse cornmeal to 4 cups of water or stock (some brands use 3 cups, so check the package), add salt, and cook on the porridge or regular setting, stirring once or twice. It usually takes 40 to 60 minutes.

Last updated: November 1, 2026

Polenta in a rice cooker: ingredients

• 1 cup coarse cornmeal or polenta (not instant)
• 4 cups of water or stock, adjusted to the package
• 1 teaspoon salt
• 1 to 2 tablespoons butter or olive oil, plus cheese if you like

Steps

1. Add the water, salt and butter to the inner pot.
2. Whisk in the cornmeal gradually to avoid lumps.
3. Close the lid and cook on the porridge setting, or the regular cook setting.
4. Stir after about 15 to 20 minutes, and again halfway through.
5. When it is thick and creamy, stir in cheese or butter and serve.

Cooking time depends on the cooker and the grind. If the cooker switches to Keep Warm before the polenta is tender, add a splash of hot water and cook again.

Tips

• Keep the cornmeal below the half-full mark, since it expands.
• Whisk well at the start to prevent lumps.
• Do not use instant polenta, which will turn too soft.
• Wash the pot soon after. See how to clean the inner pot.

Frequently asked questions

What is the polenta to water ratio?

About 1 part coarse polenta to 4 parts liquid, though some brands use 3 parts.

Why is my polenta lumpy?

The cornmeal was added too quickly. Whisk it in gradually.

Can I leave polenta on Keep Warm?

For a short time, but it thickens as it sits. Stir in a little hot water to loosen it.

Related guides

• What else can you cook in a rice cooker?
• Rice cooker recipes

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