Perfect Leftover Oatmeal Muffins

Transform your breakfast leftovers into a delicious treat with these Perfect Leftover Oatmeal Muffins! This easy and sustainable recipe repurposes a cup of cooked oatmeal into moist, tender muffins brimming with hearty rolled oats, warm cinnamon spice, and just a hint of sweetness from brown sugar. With a simple mix-and-bake method, these muffins come together in under 40 minutes, making them the perfect quick snack or breakfast on-the-go. Optionally, toss in your favorite mix-ins—like chopped nuts or chocolate chips—for added texture and flavor. Ideal for reducing food waste, these muffins not only save your leftovers but also bring wholesome, homemade goodness to your kitchen.

Nutriscore Rating: 66/100

Prep Time:15 mins

Cook Time:20 mins

Total Time:35 mins

Servings: 12

Ingredients

• 1 cup Leftover cooked oatmeal
• 1 cup All-purpose flour
• 0.5 cup Rolled oats
• 0.5 cup Brown sugar
• 1 teaspoon Baking powder
• 0.5 teaspoon Baking soda
• 0.25 teaspoon Salt
• 1 teaspoon Ground cinnamon
• 1 large Egg
• 0.5 cup Milk
• 0.25 cup Vegetable oil (or melted butter)
• 1 teaspoon Vanilla extract
• 0.5 cup Chopped nuts or chocolate chips (optional)

Directions

Step 1

Preheat your oven to 375°F (190°C) and line a muffin tin with 12 paper liners or lightly grease each cup.

Step 2

In a large mixing bowl, combine the leftover cooked oatmeal, egg, milk, vegetable oil, and vanilla extract. Stir until well blended.

Step 3

In a separate bowl, whisk together the all-purpose flour, rolled oats, brown sugar, baking powder, baking soda, salt, and ground cinnamon.

Step 4

Gradually fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix; a few lumps are fine.

Step 5

If using optional add-ins like chopped nuts or chocolate chips, fold them into the batter at this stage.

Step 6

Divide the batter evenly among the prepared muffin cups, filling each about two-thirds full.

Step 7

Bake in the preheated oven for 18-20 minutes, or until a toothpick inserted into the center of a muffin comes out clean.

Step 8

Allow the muffins to cool in the tin for 5 minutes, then transfer them to a wire rack to cool completely.

Step 9

Serve warm or at room temperature. Store leftovers in an airtight container at room temperature for up to 2 days, or refrigerate for up to a week.

Nutrition Facts

Serving size	(795.4g)

Amount per serving	% Daily Value*
Calories	2234.6

Total Fat 118.4g	0%
Saturated Fat 17.3g	0%
Polyunsaturated Fat 2.0g
Cholesterol 230.5mg	0%
Sodium 2089.7mg	0%
Total Carbohydrate 259.1g	0%
Dietary Fiber 22.1g	0%
Total Sugars 81.8g
Protein 50.5g	0%

Vitamin D 107.4IU	0%
Calcium 402.8mg	0%
Iron 14.0mg	0%
Potassium 1232.4mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 46.3%

Protein: 8.8%

Carbs: 45.0%