If you want a warm and filling breakfast without spending time at the stove, learning how to make porridge in the microwave with water is a great option. Microwave porridge is quick, simple, inexpensive, and requires very little cleanup.
Whether you use rolled oats, quick oats, or traditional oatmeal, you can make a delicious bowl of porridge with just oats, water, and a few minutes in the microwave.
In this guide, you’ll learn how to cook porridge using the microwave, how much water to use, how to prevent porridge from exploding, and whether microwave porridge is healthier than boiled porridge.
Can You Make Porridge in the Microwave With Water?
Yes, absolutely. You can make porridge in the microwave with water instead of milk. Water is enough to cook the oats and create a soft, warm porridge.
Using water also makes porridge lighter and lower in calories than versions made with whole milk. If you prefer a creamier texture, you can add a splash of milk after cooking.
For a basic serving, try:
- ½ cup rolled oats
- 1 cup water
- A small pinch of salt
The exact amount of water can be adjusted depending on how thick or creamy you like your porridge.
How to Cook Porridge Using the Microwave?
Cooking porridge in the microwave is straightforward. Follow these simple steps for a quick breakfast.
Step 1: Add the Oats and Water
Place ½ cup of oats and 1 cup of water into a large, microwave-safe bowl.
Use a bowl that is considerably larger than the amount of ingredients. Oats can bubble up during cooking, and a small bowl makes spills much more likely.
Step 2: Add a Pinch of Salt
A small pinch of salt can improve the flavor of your porridge. You can skip it if you prefer.
Step 3: Microwave the Porridge
Microwave the oats and water on high for about 2 to 3 minutes.
Cooking time depends on your microwave’s wattage and the type of oats you’re using. Quick oats may cook faster, while traditional rolled oats can take slightly longer.
Step 4: Stir Halfway Through
If possible, stop the microwave after about 1½ minutes and stir the porridge.
Stirring helps distribute the heat and prevents the oats from becoming too thick or sticking together.
Step 5: Let It Stand
Carefully remove the bowl and allow the porridge to sit for about one minute. It will continue thickening as it cools.
Add more water if the porridge is thicker than you like.
How Do I Make Perfect Porridge in the Microwave?
The key to making perfect porridge in the microwave is finding the right balance between oats, water, cooking time, and bowl size.
A good starting ratio is 1 part oats to 2 parts water. For example, use ½ cup oats with 1 cup water.
For creamier porridge, slightly increase the cooking time or let it rest for an extra minute. For thinner porridge, simply stir in a little more hot water after cooking.
Your microwave’s power also matters. A high-wattage microwave may cook porridge faster than a lower-wattage model, so keep an eye on it the first few times.
How Do You Keep Porridge From Exploding in the Microwave?
One of the most common problems when making microwave porridge is overflowing or “exploding” oats.
So, how do you keep porridge from exploding in the microwave?
First, use a large microwave-safe bowl. This is one of the easiest ways to prevent overflow.
Second, avoid cooking the porridge continuously for too long. Microwave it in shorter intervals and stir occasionally.
You can also reduce the microwave power to around 70–80% if your porridge regularly boils over.
Other helpful tips include:
- Don’t overfill the bowl.
- Use a deep bowl rather than a shallow one.
- Stir the oats before cooking.
- Stir halfway through cooking.
- Watch the porridge during the final minute.
- Reduce cooking power if it bubbles aggressively.
Never cover the bowl tightly with an airtight lid because steam needs somewhere to escape.
How Much Water Do You Need for Microwave Porridge?
For most types of oats, a 1:2 oats-to-water ratio is a good starting point.
| Oats | Water |
|---|---|
| ¼ cup | ½ cup |
| ½ cup | 1 cup |
| ¾ cup | 1½ cups |
| 1 cup | 2 cups |
However, different oats absorb water differently. If you’re using quick oats, you may need slightly less water. If you’re using steel-cut oats, the cooking method and water requirements can be different.
Always check the package instructions when available.
Is It Healthier to Boil or Microwave Porridge?
You may wonder, is it healthier to boil or microwave porridge?
For most people, there isn’t a major nutritional difference between cooking oats in the microwave and cooking them on the stove. Both methods use heat and water to soften the oats.
The bigger factor is what you add to the porridge.
For a nutritious bowl, consider adding:
- Fresh berries
- Banana
- Apple slices
- Cinnamon
- Chia seeds
- Ground flaxseed
- Nuts or nut butter
- Greek yogurt
- A small amount of honey
Using water instead of sugary flavored milk or adding large amounts of sugar can also help keep the meal lower in added sugar.
Can You Make Porridge With Cold Water in the Microwave?
Yes. You can start with cold or room-temperature water. The microwave will heat the water while cooking the oats.
Using cold water doesn’t mean the porridge needs significantly more preparation. Simply combine the oats and water in a microwave-safe bowl and cook.
If you’re in a hurry, this makes microwave oatmeal with water one of the easiest breakfast options.
Can You Reheat Porridge in the Microwave?
Yes, leftover porridge can be reheated in the microwave.
Porridge often becomes thicker after sitting in the refrigerator because the oats continue absorbing liquid. Add a small amount of water or milk before reheating.
Microwave it in short intervals, such as 30–60 seconds, stirring between intervals until it reaches your preferred temperature and consistency.
Easy Microwave Porridge Toppings
Once you’ve learned how to make porridge in the microwave with water, you can customize it in countless ways.
For a simple sweet version, add banana and cinnamon. For a berry porridge, mix in blueberries or strawberries after cooking.
If you want more protein, try adding Greek yogurt, peanut butter, almond butter, nuts, or seeds.
You can also make savory porridge by adding black pepper, vegetables, a cooked egg, or a little cheese instead of sweet toppings.
Final Thoughts
Learning how to make porridge in the microwave with water is an easy way to prepare a warm breakfast in just a few minutes. Start with a simple ratio of ½ cup oats to 1 cup water, use a large microwave-safe bowl, and stir during cooking to reduce the risk of overflow.
If you want smoother porridge, adjust the water and cooking time until you find the texture you prefer. Most importantly, don’t leave the microwave unattended if your porridge tends to bubble over.
With a few simple ingredients and the right technique, microwave porridge with water can be quick, affordable, filling, and easy to customize every morning.