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These brown sugar oatmeal muffins are hearty and comforting but also a little bit special thanks to an oatmeal streusel topping and an indulgent brown sugar glaze.

In this family, we really appreciate a good muffin and a warm beverage from a cafe, especially when we’re traveling and looking to grab a bite to eat for breakfast. It’s funny, though, because I realized recently that I almost never make muffins at home, as much as we all like them. I set out to end this muffin drought, and recently, I came up with these brown sugar oatmeal muffins, which were particularly well-received. What’s not to love about a dense, filling muffin fresh from the oven, topped with streusel and even a decadent brown sugar glaze? You really can’t go wrong. I found that tulip style muffin papers worked quite well to bring home the bakery experience, but also to hold in the streusel topping and the glaze before everything was completely set. I highly recommend surprising your family with these muffins one day for a lovely breakfast or an afternoon snack.
And for dessert: The Best Peanut Butter Chocolate-Chip Cookies to Keep in Your Freezer at All Times
Ingredients Needed for the Brown Sugar Oatmeal Muffins

You’ll need:
- Oatmeal
- All-purpose flour
- Baking powder
- Salt
- Ground cinnamon
- Eggs (or a plant-based substitute)
- Granulated white sugar
- Brown sugar
- Unsalted butter (or a plant-based substitute)
- Milk (or an unsweetened non-dairy option)
- Easy no-cook brown sugar glaze
You can use regular oatmeal, large flake oats, or quick-cooking instant oats for this recipe with equal success. I use instant oatmeal because that’s what I have most often in the pantry, but large flake oats will make for a bit of a heartier texture that you might prefer. You know what your family likes, so choose what works for you. If you’re someone who adds vanilla to everything, go right ahead with this recipe.
Another Crowd-Pleasing Recipe to Try Next: Easy 3 Ingredient Banana Bread
Oatmeal Muffin Method
Start out by preheating your oven and lining a standard muffin tin with 12 muffin papers. This recipe is designed to make 12 muffins, but you can reduce it to about 10 if you’d like and make your muffins just a bit more jumbo.

In a medium mixing bowl, combine the dry ingredients: the flour, oatmeal, salt, cinnamon, and baking powder. Stir until they are blended, and set aside.
In the bowl of a stand mixer fitted with the paddle attachment, combine the butter, sugar, eggs, and milk. Mix on medium speed until everything is well-combined, then reduce the speed to low and slowly add the dry ingredients, a little at a time, to the wet ingredients. Continue to mix until everything is just combined into an even mixture.
Next, prepare the oatmeal streusel topping by combining the white sugar, brown sugar, flour, and oats in a small mixing bowl. Pour the butter over the mixture and toss with a fork until everything just comes together but large clumps remain.
This is a variation on my basic 4-ingredient streusel recipe that I use specifically for these muffins, but if you’d like to learn how to make a more simple streusel to use on other baked goods, you can find that recipe here: Easy 4-Ingredient Streusel Topping Recipe.
Divide the batter evenly among the muffin cups, then top each muffin with about a generous tablespoon of streusel before putting them into the oven to bake until they become a beautiful golden-brown color.
When the baking time is up, transfer the muffins to a wire cooling rack and allow them to cool completely before moving on to the final yummy drizzle step with the brown sugar glaze.

Variations to Try

If you would like to add a little extra healthy goodness to these fluffy oat muffins, try adding whole wheat flour to the rolled-oats mixture when you serve them for your next brunch.
Chopped nuts such as walnuts or pecan pieces, along with dried fruits such as raisins and cranberries, would also be delightfully tasty and turn these muffins into a filling and satisfying meal.
See also: The Very Best Soft and Chewy, Non-Boring Oatmeal Cookies
Here’s the full printable recipe.

These brown sugar oatmeal muffins are hearty and comforting but also a little bit special thanks to an oatmeal streusel topping and an indulgent brown sugar glaze.
- 1 cup Oatmeal quick-cooking or instant
- 1 1/2 cups All-purpose flour
- 2 1/4 tsp Baking powder
- 1/2 tsp Salt
- 1/2 tsp Ground cinnamon
- 3/4 cup Granulated white sugar
- 2 Eggs Or prepared plant-based substitute
- 1 stick Butter Or a plant-based substitute
- 1/2 cup Milk Dairy or unsweetened non-dairy
- 1/2 cup All-purpose flour For streusel topping
- 1/4 cup Oatmeal For streusel topping
- 1/4 cup Granulated white sugar For streusel topping
- 1/4 cup Brown sugar For streusel topping
- 1/4 cup Melted butter For streusel topping
- 1 batch No-cook brown sugar glaze For drizzling, optional
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In a medium bowl, mix together the first amounts of oats, flour, salt, cinnamon, and baking powder. Set aside.
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In the bowl of a stand mixer fitted with the paddle attachment, whip together the first amounts of butter, granulated white sugar, eggs, and milk until everything is well-combined into a smooth mixture.
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With the mixer running on low, slowly add the dry ingredients to the wet ingredients, a little at a time, until everything just comes together into an even batter.
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Line a standard muffin pan with 12 muffin papers, and divide the batter evenly among all the baking cups.
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Mix the streusel topping by combining the second amount of oats, flour, and both sugars. Pour the melted butter over top and fluff the mixture with a fork until it resembles coarse crumbs with quite. few larger clumps. Sprinkle this mixture equally over the tops of each muffin.
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Bake in a 350° oven for about 25 minutes, or until the tops of the muffins are golden brown and toothpick inserted in the top of a muffin comes out clean.
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Allow the muffins to cool to room temperature before drizzling the brown sugar glaze over top.
Courtenay Hartford is the author of creeklinehouse.com, a blog based on her adventures renovating a 120-year-old farmhouse in rural Ontario, Canada. On her blog, Courtenay shares interior design tips based on her own farmhouse and her work as founder and stylist of the interior photography firm Art & Spaces. She also writes about her farmhouse garden, plant-based recipes, family travel, and homekeeping best practices. Courtenay is the author of the book The Cleaning Ninja and has been featured in numerous magazines including Country Sampler Farmhouse Style, Better Homes and Gardens, Parents Magazine, Real Simple, and Our Homes.
