These oatmeal muffins are a delightful and wholesome treat, perfect for breakfast or a quick snack. They are moist, flavorful, and easy to make, combining the hearty texture of rolled oats with the sweetness of brown sugar. Whether you're a seasoned baker or a beginner, this recipe is straightforward and yields delicious results every time.
Most of the ingredients in this recipe are common pantry staples. However, if you don't regularly bake, you might need to pick up rolled oats, brown sugar, and vanilla extract from the supermarket. These ingredients are typically found in the baking aisle. Make sure to get rolled oats and not instant oats, as they provide a better texture for the muffins.

Ingredients For Oatmeal Muffins Recipe
Rolled oats: These provide a hearty texture and are the base of the muffin.
Milk: Used to soak the oats and add moisture to the batter.
All-purpose flour: The main structure of the muffin comes from this flour.
Brown sugar: Adds sweetness and a slight molasses flavor.
Baking powder: Helps the muffins rise and become fluffy.
Baking soda: Works with the baking powder to leaven the muffins.
Salt: Enhances the flavors of the other ingredients.
Egg: Binds the ingredients together and adds richness.
Vegetable oil: Adds moisture and helps keep the muffins tender.
Vanilla extract: Adds a warm, sweet flavor to the muffins.
Technique Tip for Making Muffins
When preparing the oatmeal muffins, it's crucial to let the oats soak in the milk for the full 5 minutes. This step allows the oats to soften and absorb the liquid, which results in a more tender and moist muffin. Skipping or shortening this step can lead to a denser texture. Additionally, when combining the dry ingredients with the wet ingredients, be careful not to overmix. Overmixing can develop the gluten in the flour, making the muffins tough. Stir just until the ingredients are combined for the best results.
Suggested Side Dishes
Alternative Ingredients
rolled oats - Substitute with quick oats: Quick oats have a finer texture and will cook faster, but they can be used in place of rolled oats in most baking recipes.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that provides a similar liquid consistency and mild flavor.
all-purpose flour - Substitute with whole wheat flour: Whole wheat flour adds more fiber and nutrients, though it may make the muffins denser.
brown sugar - Substitute with coconut sugar: Coconut sugar has a lower glycemic index and a similar sweetness level, making it a good alternative.
baking powder - Substitute with baking soda and cream of tartar: Use ¼ teaspoon baking soda and ½ teaspoon cream of tartar to replace 1 teaspoon baking powder.
baking soda - Substitute with baking powder: Use 3 teaspoon baking powder to replace 1 teaspoon baking soda, but this may slightly alter the taste and texture.
salt - Substitute with sea salt: Sea salt can be used in the same quantity and provides a similar flavor.
beaten egg - Substitute with flax egg: Mix 1 tablespoon ground flaxseed with 3 tablespoon water and let it sit for a few minutes to thicken. This is a good vegan alternative.
vegetable oil - Substitute with applesauce: Applesauce can reduce the fat content and add moisture, though it may slightly change the texture.
vanilla extract - Substitute with almond extract: Almond extract provides a different but pleasant flavor that can complement the other ingredients.
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How to Store or Freeze Your Muffins
- Allow the oatmeal muffins to cool completely on a wire rack before storing. This prevents condensation from forming, which can make the muffins soggy.
- Place the cooled muffins in an airtight container. Line the container with a paper towel, place the muffins on top, and then cover them with another paper towel. This helps to absorb any excess moisture.
- Store the container at room temperature if you plan to consume the muffins within 2-3 days. For longer storage, place the container in the refrigerator, where the muffins will stay fresh for up to a week.
- For freezing, individually wrap each muffin in plastic wrap or aluminum foil to prevent freezer burn. Then, place the wrapped muffins in a resealable plastic freezer bag or an airtight container.
- Label the container or bag with the date to keep track of how long the muffins have been stored. Oatmeal muffins can be frozen for up to 3 months.
- To thaw, remove the desired number of muffins from the freezer and let them sit at room temperature for about an hour. Alternatively, you can microwave a frozen muffin on a microwave-safe plate for about 20-30 seconds or until warmed through.
- For a freshly baked taste, reheat the thawed muffins in a preheated oven at 350°F (175°C) for about 10 minutes. This will help restore their original texture and flavor.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the oatmeal muffins on a baking sheet and cover them with aluminum foil to prevent them from drying out. Warm them in the oven for about 10-15 minutes, or until they are heated through. This method helps maintain the muffins' moist texture and gives them a freshly baked feel.
Microwave Method: Place one oatmeal muffin on a microwave-safe plate. To keep the muffin from drying out, you can place a damp paper towel over it. Microwave on medium power for about 20-30 seconds. Check if it's warm enough; if not, continue in 10-second intervals. This method is quick and convenient, perfect for a busy morning.
Toaster Oven Method: Preheat your toaster oven to 350°F (175°C). Place the oatmeal muffins directly on the rack or on a small baking tray. Heat for about 5-7 minutes. This method gives the muffins a slightly crispy exterior while keeping the inside soft and moist.
Steaming Method: If you want to retain maximum moisture, place the oatmeal muffins in a steamer basket over boiling water. Cover and steam for about 5 minutes. This method ensures the muffins stay incredibly moist and tender.
Air Fryer Method: Preheat your air fryer to 300°F (150°C). Place the oatmeal muffins in the basket, making sure they are not touching each other. Heat for about 3-5 minutes. This method is great for a quick reheat and gives the muffins a slightly crisp exterior.
Essential Tools for Baking Muffins
Oven: Used to bake the muffins at the specified temperature of 400°F (200°C).
Muffin tin: Holds the muffin batter and shapes it into individual muffins.
Paper liners: Optional, but used to line the muffin tin for easy removal and cleanup.
Large bowl: Used to combine the oats and milk and let them stand.
Whisk: Used to mix the flour, brown sugar, baking powder, baking soda, and salt together.
Medium bowl: Used to mix the egg, oil, and vanilla with the oat mixture.
Measuring cups: Used to measure out the oats, milk, flour, and brown sugar.
Measuring spoons: Used to measure out the baking powder, baking soda, salt, and vanilla extract.
Mixing spoon: Used to stir the wet and dry ingredients together until just combined.
Toothpick: Used to check if the muffins are done by inserting it into the center of a muffin.
Wire rack: Used to cool the muffins completely after they have been baked.
Cooling rack: Another term for the wire rack, used for cooling the muffins.
How to Save Time on Making Muffins
Soak oats overnight: Combine rolled oats and milk the night before. This will save you time in the morning and enhance the texture.
Pre-measure ingredients: Measure out the flour, brown sugar, baking powder, baking soda, and salt in advance. Store them in a sealed container.
Use muffin liners: Skip greasing the muffin tin by using paper liners. This makes cleanup quicker and easier.
Batch baking: Double the recipe and freeze extra muffins. Reheat them for a quick breakfast or snack.
One-bowl method: Mix the wet ingredients directly into the oat mixture to minimize dishes.

Oatmeal Muffins Recipe
Ingredients
Main Ingredients
- 1 cup Rolled oats
- 1 cup Milk
- 1 cup All-purpose flour
- ½ cup Brown sugar
- 1 teaspoon Baking powder
- ½ teaspoon Baking soda
- ½ teaspoon Salt
- 1 Egg beaten
- ¼ cup Vegetable oil
- 1 teaspoon Vanilla extract
Instructions
- Preheat your oven to 400°F (200°C). Grease a muffin tin or line with paper liners.
- In a large bowl, combine the oats and milk. Let stand for 5 minutes.
- In another bowl, whisk together the flour, brown sugar, baking powder, baking soda, and salt.
- Add the egg, oil, and vanilla to the oat mixture. Mix well.
- Add the dry ingredients to the wet ingredients and stir until just combined.
- Divide the batter evenly among the muffin cups.
- Bake for 18-20 minutes or until a toothpick inserted into the center comes out clean.
- Cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
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