I make these Oatmeal Muffins a few times a month—simple, forgiving, and exactly the kind of thing I want on a weekday morning. They’re not fussy: oats soak, batter comes together, and the oven does the rest. The texture is tender with a slightly chewy crumb when you let the oats hydrate properly, and the raisins lend little pockets of sweetness.
This recipe is practical: you can soak the oats for just 20 minutes if you’re pressed for time or leave them overnight for a softer, more cohesive muffin. It uses pantry basics and two small topping ingredients to add a little crunch and visual charm. I’ll walk you through the exact method, the ingredient roles, common slip-ups to avoid, and how to store or rewarm the muffins so they taste freshly baked days later.
Below you’ll find the ingredient checklist, the method step-by-step (followed exactly as written), and my hands-on tips for small tweaks and troubleshooting. No fluff—just clear, useful guidance so you can bake these with confidence.
Ingredient Rundown
Ingredients
- 1 ½ cups rolled oats (160 g) — the base: soaks in milk and gives structure and chew.
- 1 ½ cups milk (375 ml) — hydrates the oats and dissolves sugars; use cold or room temperature.
- ½ cup raisins (90 g) — provides bursts of sweetness and texture.
- 1 cup flour (130 g) — the dry structure; all-purpose flour is assumed.
- 1 teaspoon cinnamon — warm flavor, complements the oats and raisins.
- 3 teaspoons baking powder — the leavening that gives lift and a tender crumb.
- ⅓ cup brown sugar (about 80 g) — sweetness and moisture; any granulated sugar can be used if needed.
- ½ cup melted butter (120 g) — fat for tenderness and flavor (a 113 g stick of butter is fine); can be substituted with ½ cup / 125 ml mild oil if you prefer.
- 1 egg — binds the batter and adds richness.
- 1 teaspoon vanilla essence (optional) — enhances overall flavor if you choose to include it.
- 1 tablespoon rolled oats — for the topping, adds a rustic look and slight texture.
- 1 teaspoon brown sugar — for the topping, gives a tiny caramelized crunch when baked.
The Method for Oatmeal Muffins
- Place 1 1/2 cups (160 g) rolled oats and 1/2 cup (90 g) raisins in a medium bowl. Pour in 1 1/2 cups (375 ml) milk, stir to combine, and let soak for at least 20 minutes (or up to overnight) until the oats and raisins are soft.
- While the oats soak (or just before baking), preheat the oven to 180°C (approx. 350°F). Prepare a 12-cup muffin tray by greasing the cups or lining them with paper liners.
- In a large bowl, whisk together 1 cup (130 g) flour, 3 teaspoons baking powder, 1 teaspoon cinnamon, and 1/3 cup (80 g) brown sugar until evenly combined.
- Melt 1/2 cup (120 g) butter (or measure 1/2 cup / 125 ml mild oil if using the oil substitute). If using melted butter, let it cool briefly so it is warm, not piping hot.
- To the soaked oats and raisins, add 1 egg, the melted butter or oil, and 1 teaspoon vanilla essence if using. Stir until evenly mixed.
- Pour the wet oat mixture into the dry flour mixture. Gently fold together until just combined—do not overmix.
- Portion the batter evenly into the prepared 12 muffin cups.
- In a small bowl, combine 1 tablespoon rolled oats and 1 teaspoon brown sugar. Sprinkle this mixture over the top of the uncooked muffins.
- Bake in the preheated oven for 20–25 minutes, until a toothpick inserted into the center comes out clean or the muffin springs back when lightly pressed.
- Let the muffins cool in the tray for 5 minutes, then remove them to a wire rack to cool completely (or serve warm with a little butter if you prefer).
What You’ll Love About This Recipe
- Flexible timing: soak the oats 20 minutes for a quick bake or overnight for hands-off prep.
- Pantry-friendly ingredients—most are staples you likely already have.
- Texture balance: tender crumb from the flour and egg, chew from the oats, pockets of sweetness from raisins.
- Easy to scale: the method is straightforward if you want to double the batch.
- Minimal topping creates a nice finish without extra fuss.
If You’re Out Of…
- Brown sugar: the recipe notes that any granulated sugar can be used—use what you have on hand.
- Butter: you can substitute ½ cup / 125 ml mild oil as indicated in the ingredient note.
- Vanilla essence: optional in the recipe; omit if you don’t have it—the muffins will still be flavorful.
Prep & Cook Tools
- Medium mixing bowl for soaking oats and raisins.
- Large bowl for dry ingredients.
- Muffin tray (12-cup) with liners or a brush for greasing.
- Measuring cups and spoons to match the listed quantities.
- Whisk or fork for dry ingredient mixing; a spatula for folding batter.
- Small bowl for the topping mix.
- Wire rack for cooling.
- Oven preheated to 180°C / 350°F.
Mistakes Even Pros Make
- Skipping the soak: not allowing the oats to hydrate will produce a drier, denser muffin. Even 20 minutes matters.
- Overmixing: folding until just combined is crucial. Overworked batter yields tough muffins.
- Using piping-hot melted butter: if the butter is too hot when added to the eggs, it can curdle the mixture. Let it cool slightly.
- Ignoring oven temperature: every oven runs hot or cold—use an oven thermometer if your bakes brown too quickly or take longer than expected.
- Filling cups unevenly: if muffins vary greatly in size, baking times will be inconsistent. Portion batter evenly.
Nutrition-Minded Tweaks
- Reduce sugar: the recipe includes brown sugar in batter and for topping. You can reduce the batter sugar slightly if you want less sweetness, keeping in mind texture and moisture will change.
- Swap fat: substituting mild oil for melted butter (as noted) reduces saturated fat and keeps the muffins moist.
- Boost fiber: the oats already add whole-grain fiber—use thicker rolled oats if you prefer more chew and fiber per bite.
- Control portions: use a muffin scoop to keep servings consistent, which helps with calorie control.
Recipe Notes & Chef’s Commentary
The single most impactful step is the oat soak. When oats sit in milk, they soften and release their starches, which helps the batter bind without needing a high egg or butter ratio. If you soak overnight, the batter will be looser and the final muffins will be more cake-like and uniform. If you soak only 20 minutes, expect a bit more texture from the oats.
Folding technique matters. Pour the wet mix into the dry and use a gentle folding motion: cut down through the center, sweep the sides, and turn the bowl. Stop when you no longer see streaks of flour. A few small lumps are better than a dense muffin from overworked gluten.
The topping is optional but effective—1 tablespoon oats and 1 teaspoon brown sugar give you a modest crunch and a finished look. If you want a glossier top, brush with a touch of melted butter right after baking, but the recipe’s baked topping is simple and satisfying.
Cooling, Storing & Rewarming
- Cooling: follow the recipe: cool in the tray for 5 minutes, then transfer to a wire rack. This short rest helps the muffins set so they don’t collapse when removed.
- Room temperature storage: store in an airtight container for up to 2 days. Place a paper towel in the container to absorb excess moisture.
- Refrigeration: if you need longer storage, refrigerate up to 4–5 days; bring to room temperature or warm gently before serving.
- Freezing: freeze cooled muffins individually on a tray, then transfer to a freezer-safe bag for up to 3 months. Thaw at room temperature and warm briefly in an oven or microwave.
- Rewarm: microwave for 15–25 seconds for a quick warm-up, or reheat in a 160°C / 325°F oven for 6–8 minutes if frozen or longer if chilled—watch closely so they don’t dry out.
Popular Questions
- Can I make these dairy-free? The recipe lists milk and butter, but you can use a plant-based milk and substitute oil for butter as the ingredient notes allow the oil option.
- What if I don’t like raisins? The recipe centers on raisins in the soak. If you prefer them omitted, reduce the soaked-in solids slightly to keep the same oat-to-liquid ratio.
- Can I halve or double the recipe? Yes, the method is straightforward to scale—use the same soak and mixing order and bake in the same size muffin cups, adjusting total bake time only slightly if you change cup size.
- How do I know they’re done? A toothpick inserted in the center should come out clean, or the muffin should spring back when lightly pressed.
Next Steps
If you’re about to bake: set the oats to soak first, preheat the oven while you whisk the dry ingredients, and line your muffin tray so you can portion batter quickly and evenly. If you’ve already baked them, try a quick reheat with a dab of butter for an easy breakfast or pack them in lunches—these muffins hold up well and are forgiving in texture.
Feel free to bookmark this page or print the method steps directly and keep the ingredient notes handy. These Oatmeal Muffins are one of those reliable recipes that reward small attention to details but don’t demand perfect technique—exactly the kind of bake I reach for on busy mornings. Happy baking.
Oatmeal Muffins
Ingredients
Ingredients
- ?1 1/2 cupsrolled oats160 g
- ?1 1/2 cupsmilk375 ml
- ?1/2 cupraisins90 g
- ?1 cupflour130 g
- ?1 teaspooncinnamon
- ?3 teaspoonbaking powder
- ??cupbrown sugarTHis is one third of a cup the internet seems to not like the symbol 80 g, any granulated sugar can be used
- ?1/2 cupmelted butter120 g or a 113 g stick of butter will be fine can sub for 1/2 cup / 125 ml of mild oil
- ?1 egg
- ?1 teaspoonvanilla essence optional
- ?1 tablespoonrolled oats
- ?1 teaspoonbrown sugar
Instructions
Instructions
- Place 1 1/2 cups (160 g) rolled oats and 1/2 cup (90 g) raisins in a medium bowl. Pour in 1 1/2 cups (375 ml) milk, stir to combine, and let soak for at least 20 minutes (or up to overnight) until the oats and raisins are soft.
- While the oats soak (or just before baking), preheat the oven to 180°C (approx. 350°F). Prepare a 12-cup muffin tray by greasing the cups or lining them with paper liners.
- In a large bowl, whisk together 1 cup (130 g) flour, 3 teaspoons baking powder, 1 teaspoon cinnamon, and 1/3 cup (80 g) brown sugar until evenly combined.
- Melt 1/2 cup (120 g) butter (or measure 1/2 cup / 125 ml mild oil if using the oil substitute). If using melted butter, let it cool briefly so it is warm, not piping hot.
- To the soaked oats and raisins, add 1 egg, the melted butter or oil, and 1 teaspoon vanilla essence if using. Stir until evenly mixed.
- Pour the wet oat mixture into the dry flour mixture. Gently fold together until just combined—do not overmix.
- Portion the batter evenly into the prepared 12 muffin cups.
- In a small bowl, combine 1 tablespoon rolled oats and 1 teaspoon brown sugar. Sprinkle this mixture over the top of the uncooked muffins.
- Bake in the preheated oven for 20–25 minutes, until a toothpick inserted into the center comes out clean or the muffin springs back when lightly pressed.
- Let the muffins cool in the tray for 5 minutes, then remove them to a wire rack to cool completely (or serve warm with a little butter if you prefer).
Equipment
- ?muffin tray
Notes
Butter: A mild flavoured oil, ie not extra virgin olive oil as this will be too strong
Flour: Plain flour can be subbed for wholemeal four (this will give a denser muffin) or gluten-free flour, but not a nut flour like almond four or coconut flour
Milk: Can be substituted for any milk alternative; Soy, Almond, Rice etc
Brown Sugar: I use brown sugar in this recipe because I like the flavour it gives but this can be substituted for any granulated sugar.
Raisins:These can be subbed for another dried fruit, dates work well. Just cut them into pieces similar in size to raisins.
Egg:This recipe will work with ¼ cup of apple sauce as an egg replacer.
Store at room temp in an airtight container for up to 3 days
Freeze in an airtight container for up to 3 months (they defrost beautifully in a lunchbox)
