The Ultimate Healthy Oatmeal Muffins
These healthy oatmeal muffins are perfect for breakfasts and snacks! They’re simple to make and deliciously cozy with lots of warm spices and soft oats in every bite. Greek yogurt and “soaking” the oats (in Step 2!) yield an incredibly tender and moist texture, with virtually no extra effort! Leftovers will keep for at least four days if stored in an airtight container in the refrigerator.
Ingredients
- ¾ cup (75g) instant oats (gluten-free if necessary and measured like this)
- ½ cup (120g) plain nonfat Greek yogurt
- 1 ¼ cups (300mL) nonfat milk, divided
- 2 cups (240g) white whole wheat flour or gluten-free* flour (measured like this)
- 4 tsp ground cinnamon
- ½ tsp ground nutmeg
- ¼ tsp ground ginger
- 1 ½ tsp baking powder
- ¾ tsp baking soda
- ¼ tsp salt
- ½ tbsp (7g) unsalted butter or coconut oil, melted and cooled slightly
- 2 large egg whites, room temperature
- 2 tsp vanilla extract
- 1 ½ tsp liquid stevia (see Notes!)
Instructions
- Preheat the oven to 350°F, and coat 12 muffin cups with nonstick cooking spray. (If using liners, then line 12 muffin cups with liners and coat them with cooking spray.)
- In a medium bowl, stir together the oats, Greek yogurt, and ¼ cup of milk. In a separate bowl, whisk together the flour, cinnamon, nutmeg, ginger, baking powder, baking soda, and salt. In a third bowl, whisk together the butter, egg whites, vanilla, and stevia. Add in the oat mixture, stirring until no large lumps remain. Stir in ½ cup of milk. Alternate between adding the flour mixture and remaining ½ cup of milk, beginning and ending with the flour mixture, and stirring just until incorporated. (For best results, add the flour mixture in 3 equal parts.)
- Divide the batter between the prepared muffin cups. Bake at 350°F for 26-29 minutes or until the tops feel firm to the touch and a toothpick inserted into the center comes out clean or with a few dry crumbs attached. Cool in the pan for 5 minutes before transferring to a wire rack to cool completely.
Notes
IMPORTANT MEASURING NOTE – READ BEFORE BEGINNING: It's extremely important to measure the oats and flour correctly, using this method or a kitchen scale. (← That’s the one I own!) Too much of either will dry out the muffins. This is especially true of the oats; they act like little sponges and soak up lots of moisture.
IMPORTANT MIXING NOTE – READ BEFORE BEGINNING: Do not use a stand mixer or hand-held mixer to make the batter. This will result in rubbery, gummy, dense, or tough muffins. Use a whisk where instructed, and use a fork for everything else.
IMPORTANT FLAVOR NOTES – READ BEFORE BEGINNING: For a stronger spice flavor, increase the cinnamon by an additional ¼ to ½ teaspoon and/or the ginger by an additional ¼ teaspoon. (See the FAQ section in my blog post above the recipe for more details!)
For sweeter muffins, increase the liquid stevia by an additional ¼ to ½ teaspoon.
OATS NOTE + ALTERNATIVE: Instant oats are also called “quick cooking” or “one-minute” oats. They’re smaller and thinner than traditional old-fashioned rolled oats, so they soften faster (which gives these muffins their moist and fluffy texture!). They only include one ingredient — oats! — just like old-fashioned rolled oats. You can find instant oats right next to the traditional old-fashioned rolled oats at the grocery store. (They are not the ones in the small flavored packets of oatmeal!)
In a pinch, to make your own, add ¾ cup (75g) of old-fashioned rolled oats to a blender or food processor, and pulse until they’re ⅛ to ¼ of their original size.
FLOUR ALTERNATIVES: Regular whole wheat flour, whole wheat pastry flour, or all-purpose flour may be substituted in place of the whole wheat flour. (See the “Flour” header in the “Key Ingredients to Make the Ultimate Healthy Oatmeal Muffins” section above for more info about which flours I recommend!)
SPICE NOTES: I prefer Saigon cinnamon (I buy it online here!) because it tastes stronger, richer, and sweeter than regular cinnamon. The nutmeg adds richness, and the ginger creates a lovely background warmth. (See the “Spices” header in the “Key Ingredients to Make the Ultimate Healthy Oatmeal Muffins” section as well as the FAQ section in my blog post above the recipe for more info!)
EGG WHITES NOTE + ALTERNATIVE: The muffins require 2 full egg whites. The whites contain the majority of the protein in eggs, and that protein is required to ensure the muffins maintain their shape and texture while cooling. Without both egg whites, the muffins will collapse while cooling and turn out much denser.
If you prefer to use whole eggs, then use 2 large eggs AND decrease the milk by 1 tablespoon (15mL) to compensate for the added volume from the yolks.
STEVIA NOTES + ALTERNATIVES: Many stevia brands and products have different sweetness levels, so they’re not necessarily 1-for-1 substitutes for each other. For the best results, use the same liquid stevia that I do. I buy it online here (← that’s the best price I’ve found!), and you’ll use it in all of these recipes of mine too. (It's one of my favorite ingredients!)
However, if you strongly prefer to omit the liquid stevia from the muffins, substitute ¾ cup (144g) granulated sugar, brown sugar, or coconut sugar AND reduce the milk to ¾ cup + 2 tablespoons (210mL). You may also substitute ¾ cup (180mL) pure maple syrup, honey, or agave AND reduce the milk to ½ cup (120mL) instead. The baking time may vary slightly with either of those substitutions as well.
MILK ALTERNATIVES: Any milk may be substituted in place of the nonfat milk.
GLUTEN-FREE OPTION: For the gluten-free flour, use the following: 1 cup (120g) millet flour, ½ cup (60g) tapioca flour, ½ cup (60g) brown rice flour, and 1 ½ teaspoons xanthan gum. Many store-bought gluten-free flour blends (I like this one from Bob's Red Mill) will work as well, if measured like this.
HOW TO STORE: Store the fully cooled muffins in an airtight container in the refrigerator. They should keep for at least 4 days, if not longer.
FREEZING TIPS: Peel off the paper liners before freezing. (It’s harder to peel them off after thawing or reheating the muffins!) I like to thaw individual muffins in the microwave on 50% power until they’re warmed all the way through. They almost taste freshly baked like that!
FLAVOR VARIATIONS: This recipe works as a great blank canvas! I’ve shared how to modify it to create other flavor variations here (zucchini, apple, banana, carrot, pumpkin, peach, and more — but I highly recommend starting with the carrot one… it reminds me of carrot cake!).
{gluten-free, clean eating, low fat, lower sugar}
DID YOU MAKE THIS RECIPE?I'd love to hear what you think of it in a comment below! If you take a picture, tag @amys.healthy.baking on Instagram or use the hashtag #amyshealthybaking.