Baked Oatmeal Cups

Featured in: Weekend Comfort Bakes

These baked oatmeal cups offer a soft and chewy texture, ideal for quick, nutritious breakfasts or snacks on the go. Made with rolled oats, cinnamon, and brown sugar, they combine wholesome dry ingredients with wet elements like eggs, milk, applesauce, and vanilla to create a flavorful base. The batter is baked in muffin tins until golden, and you can add mix-ins like berries, nuts, or chocolate chips for variety. Easy to prepare and store, these cups work well for meal prep and can be customized to suit dietary preferences.

Use gluten-free oats for a gluten-free option, or substitute flax eggs and plant-based milk to create a vegan alternative. Enjoy warm or chilled, perfect for a quick energy boost anytime.

Updated on Tue, 23 Dec 2025 14:14:00 GMT
Warm baked oatmeal cups, golden brown and perfectly portioned; a delightful breakfast. Save Pin
Warm baked oatmeal cups, golden brown and perfectly portioned; a delightful breakfast. | frostedthyme.com

I discovered these oatmeal cups during a chaotic Monday morning when I realized I'd forgotten to buy my usual breakfast bars. The viral trend had been popping up everywhere, and I finally caved after a particularly hungry meeting where my stomach growled loud enough to make my coworkers laugh. They're now a Sunday ritual, filling the kitchen with that comforting cinnamon-baked oat smell that somehow makes Monday feel manageable.

My sister claimed she hated oatmeal until she tried these warm from the oven with a handful of chocolate chips stirred in. Now she texts me every Sunday asking if I've made my batch for the week. Something about portioning them into muffin cups transforms oatmeal from boring breakfast into legitimate comfort food.

Ingredients

  • Old-fashioned rolled oats: Steel-cut won't soften properly here, and quick oats turn mushy, so stick with the classic rolled kind
  • Light brown sugar: Creates a chewier texture and deeper molasses flavor than white sugar ever could
  • Baking powder: This tiny amount makes all the difference between dense hockey pucks and cups that actually rise
  • Ground cinnamon: Don't be tempted to add more, or it'll overpower everything else
  • Salt: Seems unnecessary, but it's what makes the cinnamon pop instead of fading into the background
  • Eggs: These bind everything together while keeping the cups tender rather than tough
  • Milk: Any milk works here, dairy or plant-based, just avoid skim if you want them moist
  • Unsweetened applesauce: My secret weapon for keeping them soft without adding extra fat or sugar
  • Coconut oil or butter: Coconut oil adds subtle sweetness, but butter gives that classic baked good flavor
  • Pure vanilla extract: Worth the extra money for the real stuff, it rounds out all the flavors

Instructions

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Prep your muffin tin:
Line those cups immediately, because trying to do it after your hands are covered in batter is miserable and unnecessary
Whisk the dry ingredients:
Get any cinnamon clumps broken up now so you don't bite into a raw cinnamon pocket later
Mix the wet ingredients:
Take your time whisking the eggs into the milk first, otherwise you'll end up with cooked egg bits in your batter
Combine everything:
Don't worry about overmixing here, oatmeal doesn't develop gluten like wheat flour does
Add your mix-ins:
Fold gently if using berries so they don't bleed color throughout the whole batch
Fill the muffin cups:
Really fill them to the top, they puff up nicely but won't overflow like regular muffins
Bake until golden:
Start checking at 23 minutes, and pull them when the tops feel set but still give slightly when pressed
Cool completely:
The texture improves as they cool, so resist cutting into them while they're still warm
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Quickly slice, dice, grate, and spiralize vegetables for salads, stir fries, and faster everyday meal prep.
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| frostedthyme.com

These became my go-to when I started training for a half marathon and needed breakfast I could eat in the car. Something about having homemade food ready changed my whole morning routine, and now I feel strangely civilized eating warm oatmeal cups even on days when I'm running fifteen minutes late.

Mix-In Magic

The beauty of this recipe is how it adapts to whatever you have in your pantry. I've made them with everything from pumpkin puree in fall to chopped peaches in summer, and somehow they always work. Keep your total mix-ins to one cup or the texture gets thrown off.

Make-Ahead Strategy

Double the batch and freeze half, wrapped individually in parchment so they never stick together. Thirty seconds in the microwave brings them back to life, and honestly, I think the texture improves after freezing.

Serving Ideas

Warm one up and top with a dollop of Greek yogurt or a drizzle of almond butter if you have extra time. They're also surprisingly good crumbled over vanilla ice cream for dessert. These are the versatile workhorses that keep you from reaching for processed food when life gets busy.

  • Set out mix-ins in small bowls and let kids customize their own
  • Press a fresh berry into the top of each cup before baking for a pretty presentation
  • Wrap individually in plastic wrap for grab-and-go breakfasts all week
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Golden Baked Oatmeal Cups, studded with berries, fresh from the oven, offering a delightful aroma. Save Pin
Golden Baked Oatmeal Cups, studded with berries, fresh from the oven, offering a delightful aroma. | frostedthyme.com

These oatmeal cups have saved more mornings than I care to admit, and something about having homemade breakfast ready makes the whole week feel less chaotic. Hope they become your reliable backup too.

Questions & Answers

What mix-ins can I add?

You can add fresh or frozen berries, mini chocolate chips, chopped nuts like walnuts or pecans, or dried fruits such as raisins or cranberries for extra flavor and texture.

Can I make these gluten-free?

Yes, by using certified gluten-free rolled oats, you can ensure the cups are gluten-free, suitable for sensitive diets.

How do I store leftover oat cups?

Store them in an airtight container in the refrigerator for up to 5 days, or freeze for up to 2 months to keep them fresh longer.

Is there a vegan option for the oat cups?

Replace eggs with a flaxseed mixture (2 tbsp ground flaxseed + 5 tbsp water) and use plant-based milk and oils to make vegan oat cups.

What texture do the baked cups have?

They come out soft and chewy with a lightly golden top, offering a satisfying mouthfeel that's enjoyable for breakfast or snacks.

Baked Oatmeal Cups

Wholesome oat cups that are portable, soft, and customizable for easy mornings and snacks.

Prep Time
10 minutes
Time to Cook
25 minutes
All-In Time
35 minutes
By Frosted Thyme Madison Kelly


Skill Level Easy

Cuisine American

Makes 12 Portions

Diet Preferences Vegetarian

What You'll Need

Dry Ingredients

01 2 cups old-fashioned rolled oats (certified gluten-free if required)
02 1/2 cup packed light brown sugar
03 1 teaspoon baking powder
04 1/2 teaspoon ground cinnamon
05 1/4 teaspoon salt

Wet Ingredients

01 2 large eggs
02 1 1/4 cups milk (dairy or unsweetened plant-based)
03 1/4 cup unsweetened applesauce
04 1/4 cup melted coconut oil or unsalted butter
05 1 teaspoon pure vanilla extract

Optional Mix-Ins

01 Up to 1 cup fresh or frozen berries, mini chocolate chips, chopped nuts (walnuts, pecans, almonds), or dried fruit (raisins, cranberries)

Directions

Step 01

Preheat Oven: Set oven temperature to 350°F and prepare a 12-cup muffin tin with paper liners or nonstick spray.

Step 02

Combine Dry Ingredients: Whisk together oats, light brown sugar, baking powder, cinnamon, and salt in a large bowl until evenly mixed.

Step 03

Mix Wet Ingredients: In a separate bowl, whisk eggs, milk, applesauce, melted coconut oil or butter, and vanilla extract until smooth and uniform.

Step 04

Combine Mixtures: Pour the wet mixture into the dry ingredients and stir gently until fully incorporated with a uniform consistency.

Step 05

Incorporate Mix-Ins: Fold in optional mix-ins no more than 1 cup total, if desired, ensuring even distribution without overmixing.

Step 06

Fill Muffin Tin: Divide batter evenly among the prepared muffin cups, filling each almost to the top for uniform baking.

Step 07

Bake: Bake in the preheated oven for 23 to 27 minutes, until golden on top and set in the center.

Step 08

Cool: Allow cups to cool in the pan for 5 minutes before transferring to a wire rack to cool completely.

Tools Needed

  • Mixing bowls
  • Whisk
  • 12-cup muffin tin
  • Measuring cups and spoons
  • Paper muffin liners or nonstick spray

Allergen Details

Always check each item for allergens and ask a medical expert if unsure.
  • Contains eggs; vegan alternatives recommended for allergies.
  • May contain nuts if added as mix-ins.
  • Contains dairy if using milk or butter; substitute plant-based options for dairy-free needs.
  • Oats may contain gluten; use certified gluten-free oats to avoid gluten exposure.

Nutrition Info (per portion)

For reference only—please ask a healthcare professional if you need tailored advice.
  • Calorie Count: 135
  • Fat content: 5 g
  • Carbohydrates: 19 g
  • Proteins: 3 g