Tulo

Energy-Boosting Banana Oat Smoothie Recipe

A tall glass of a pale brown-green smoothie topped with a swirl of peanut butter and a sprinkle of chia seeds, with a frozen banana and fresh spinach leaves arranged beside it on a wood counter.
Photo by Verena Hinteregger on Pexels

Rolled oats and peanut butter add slow-digesting carbs and fat that release energy gradually, while the frozen banana supplies quick natural sugar and the cold brew concentrate adds a real caffeine boost, so the effect lasts longer than a sugary juice-based smoothie without the mid-morning crash.

Prep
5 min
Cook
0 min
Total
5 min
Servings
2

Ingredients

Servings2
  • 1 cup unsweetened almond milk
  • 1/2 cup cold brew coffee concentrate
  • 1/3 cup rolled oats
  • 2 tbsp natural peanut butter
  • 1 tbsp chia seeds
  • 1 tbsp honey
  • 1 cup baby spinach, packed
  • 1 medium frozen banana, frozen and sliced
  • 1/2 cup ice cubes

Nutrition per serving

Calories
278
Protein
8g
Carbs
38g
Fat
12g

Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.

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Instructions

  1. 1Pour the almond milk and cold brew concentrate into the blender jar first, before any solids go in.
  2. 2Add the rolled oats, peanut butter, chia seeds, and honey.
  3. 3Add the packed spinach and frozen banana slices on top of the liquid and oats.
  4. 4Blend on high for 45-60 seconds, until completely smooth with no visible oat grains or spinach flecks.
  5. 5Add the ice cubes and blend again for 15-20 seconds to chill and thicken the smoothie.
  6. 6Pour into two glasses and serve right away.
How to Make Cold Brew Concentrate

Tips & variations

  • No cold brew on hand? Substitute 1/2 cup of strong brewed coffee that's been cooled completely, adding it warm will melt the ice and thin the smoothie.
  • For a kid-friendly, caffeine-free version, swap the cold brew concentrate for an extra 1/2 cup of almond milk.
  • Stir in a scoop of vanilla protein powder for a more substantial post-workout version.
  • Swap the banana for frozen mango if you prefer a brighter, less starchy flavor.

Storage & reheating

This smoothie is best blended fresh since oats and banana continue to thicken it as it sits. If needed, store in an airtight jar in the refrigerator for up to 24 hours and shake or re-blend before drinking. For meal prep, freeze the spinach, banana, and oats together in a single bag so all you add on blend day is the liquid.

Tips from the Tulo kitchen

  • Slice and freeze the banana the night before so it's ready to blend straight from the freezer.
  • Portion the spinach, oats, and chia seeds into freezer bags ahead of time to cut morning prep down to just adding liquid and blending.

FAQ

How much caffeine is in this smoothie?

Half a cup of cold brew concentrate typically has about 130-200mg of caffeine, roughly the same as a strong cup of drip coffee, so treat one serving like a coffee replacement rather than an addition to your usual cup.

Can I make this smoothie without coffee?

Yes. Replace the cold brew concentrate with an equal amount of almond milk; you'll lose the caffeine boost but keep the same texture and the slow-release energy from the oats and peanut butter.

Why add oats to a smoothie?

Raw rolled oats blend into a smooth, thick base and add fiber and complex carbohydrates that digest more slowly than fruit sugar alone, which is what helps the energy from this smoothie last longer than a straight fruit smoothie.

Can I taste the spinach?

Barely. One cup of baby spinach blended with banana, peanut butter, and honey is masked almost completely; it mainly contributes color and a small nutrient boost rather than flavor.

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