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thick banana oat smoothie in clear glass topped with rolled oats and cinnamon on white marble counter — creamy oatmeal breakfast smoothie ready in 5 minutes

Banana Oat Smoothie

Authorlily mellow
A thick, creamy banana oat smoothie made with ripe banana, rolled oats, chia seeds and raw cashews. Naturally sweet, dairy-free and ready in 5 minutes — a real breakfast in a glass.
Prep Time5 minutes
Total Time5 minutes
Servings1 large glass
Calories400 kcal

Equipment

  • High-speed blender (or standard blender — see Note 2)
  • Measuring cups and spoons
  • Tall glass or Mason jar for serving

Ingredients  

WET INGREDIENTS

  • 1 large very ripe banana peeled, sliced and frozen
  • ¾ to 1 cup 200–240ml unsweetened almond milk, oat milk, or semi-skimmed milk
  • 2 small Medjool dates pitted

DRY INGREDIENTS

  • ¼ cup 25g old-fashioned rolled oats
  • ½ tbsp 6g chia seeds
  • 6 raw cashews approx. 10–12g
  • ¼ tsp ground cinnamon optional

OPTIONAL

  • 2–3 ice cubes optional

Instructions 

  1. Dry-blend the rolled oats, raw cashews, and chia seeds in the blender for 10–15 seconds until finely ground into a flour-like powder.
  2. Add 200ml milk, the pitted dates, cinnamon, and frozen banana slices.
  3. Blend on high speed for 60 seconds until completely smooth and glossy.
  4. Adjust the consistency: add 2 tbsp extra milk if too thick and pulse once. Add more frozen banana if too thin.
  5. Serve immediately in a tall glass. Top with a pinch of rolled oats or a dusting of cinnamon.

Notes

Note 1 — Storage: Best consumed within 15 minutes. Keeps up to 24h in
the fridge in a sealed jar — it will thicken considerably (like overnight
oats). Shake well and add a splash of milk before drinking. Freeze up to
1 month in a freezer-safe jar; thaw overnight in the fridge.
Note 2 — Standard blender: Soak cashews and dates in warm milk for
10 minutes before blending. Always dry-blend the oats first, then proceed.
Note 3 — Nut-free: Replace cashews with 1 tbsp sunflower seeds or
1 tbsp thick Greek yogurt for the same creamy result without tree nuts.