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Creamy overnight steel cut oats in a glass jar topped with blueberries and a drizzle of honey.

Overnight Steel Cut Oats

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This hearty batch of overnight steel cut oats starts with lightly toasted oats soaked in a 1:2 oats‑to‑liquid ratio and refrigerated for 8–12 hours. They make mornings simple, so you can wake up to a creamy, fiber‑packed breakfast all week. Enjoy them chilled or quickly warm and top any way you like! They're the perfect healthy, customizable breakfasts.
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Prep Time10 minutes
Chill Time8 hours
Total Time8 hours 10 minutes
Servings: 4

INGREDIENTS

  • 1 Tablespoon unsalted butter or coconut oil
  • 1 cup steel cut oats
  • 2 cups water or equal parts water and milk for creamier oats
  • 1 teaspoon kosher salt
  • Optional toppings: chia seeds, flax seed, banana, berries, apples, nut butter, cinnamon, maple syrup, or dried fruit

INSTRUCTIONS

  • Toast oats (1-2 min): Melt the butter in a medium saucepan over medium heat. Add the steel cut oats and salt, toast for 1-2 minutes, until slightly nutty.
    1 Tablespoon unsalted butter, 1 cup steel cut oats, 2 cups water, 1 teaspoon kosher salt
  • Boil and simmer (2 min): Pour in the water (or milk) and bring to a boil over high heat. Reduce to low, cover, and simmer for 1 minute then remove from the heat and cool slightly.
  • Soak (8-12 hrs): Divide into 4 jars or transfer to one big bowl. Cover and refrigerate for 8-12 hour, until the oats absorb all of the liquid and are softened and creamy. They should still have some chew to them.
  • Serve: To serve chilled, stir, add splash of milk, and top as desired. For warm oats, stir in a splash of milk and microwave for 1-2 minutes. Top and enjoy!
    Optional toppings: chia seeds, flax seed, banana, berries, apples, nut butter, cinnamon, maple syrup, or dried fruit

Notes

High-Protein Overnight Steel Cut Oats: I highly recommend adding 2-3 scoops of protein to this mix to balance out the macronutrients to keep you full! I love this vanilla protein powder or this flavorless protein powder. Add an extra 2 Tbsp of milk for every scoop of protein.
Toppings to balance blood sugar: add some chia seeds and raspberries to boost the fiber even more and finish with a dollop of nut butter for healthy fats. That's my favorite way to serve them!
Storage. Keep in the fridge in an airtight for up to 5 days.
Consistency tip. Steel cut oats have a chewier and firmer texture than typical rolled oats, so keep that in mind! For this recipe, a shorter soak = firmer and chewier texture, while a longer soak yields a creamier texture.

Nutrition

Serving: 1jar | Calories: 179kcal | Carbohydrates: 26g | Protein: 6g | Fat: 6g | Saturated Fat: 2g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 8mg | Sodium: 610mg | Fiber: 5g | Sugar: 0.003g | Vitamin A: 87IU | Calcium: 25mg | Iron: 2mg
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