Slow-Cooker Overnight Oatmeal with Apples & Walnuts

This oatmeal recipe is great when you have guests and want to serve them a special breakfast. Everything cooks in the slow-cooker overnight--all you need to do in the morning is throw together the roasted apple and walnut topping, and serve!

Prep Time:
20 mins
Additional Time:
5 hrs 55 mins
Total Time:
6 hrs 15 mins
8 servings


  • 4 cups chopped apples (see Tip)

  • 2 cups fat-free milk

  • 2 cups water

  • 1 cup steel-cut oats (see Tip)

  • ¼ cup packed brown sugar (see Tip)

  • 2 tablespoons butter, sliced

  • 1 teaspoon vanilla

  • ½ teaspoon ground cinnamon

  • ¼ teaspoon salt

  • ¼ teaspoon ground nutmeg

  • 2 teaspoons canola oil

  • 1 teaspoon packed brown sugar (see Tip)

  • 1 teaspoon lemon juice

  • ½ cup chopped walnuts, toasted


  1. Line a 3 1/2- to 4-qt. slow cooker with a disposable slow cooker liner. In prepared cooker, combine 2 cups of the apples with milk, water, oats, 1/4 cup brown sugar, butter, vanilla, cinnamon, salt, and nutmeg. Cover and cook on low 6 to 8 hours.

  2. Shortly before oatmeal is done, preheat oven to 450 degrees F. For topping, in a 15x10-inch baking pan, drizzle remaining 2 cups apples with oil; toss to coat. Roast 10 to 12 minutes or until light brown, stirring once. Stir in the 1 teaspoon brown sugar and lemon juice.

  3. Top servings of oatmeal with apple topping and walnuts.


Tips: To prevent browning, store the chopped apples reserved for topping in a mixture of 2 cups water and 2 tablespoons lemon juice in the refrigerator while the oatmeal is cooking.

People with celiac disease or gluten sensitivity should use oats that are labeled "gluten-free," as oats are often cross-contaminated with wheat and barley.

We do not recommend using a sugar substitute for this recipe.

Equipment: 3 1/2- to 4-quart slow cooker

Nutrition Facts (per serving)

248 Calories
11g Fat
34g Carbs
7g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 248
% Daily Value *
Total Carbohydrate 34g 12%
Dietary Fiber 4g 16%
Total Sugars 16g
Protein 7g 14%
Total Fat 11g 13%
Saturated Fat 3g 14%
Cholesterol 9mg 3%
Vitamin A 245IU 5%
Vitamin C 3mg 3%
Folate 12mcg 3%
Sodium 126mg 5%
Calcium 107mg 8%
Iron 1mg 7%
Magnesium 23mg 5%
Potassium 200mg 4%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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