Plain Protein Co. Smoothie Recipe Guide

5 recipes. Clean ingredients. Real macros.
How to use this guide
These five recipes are built around one principle: the protein should work, and everything else in the glass should be food you recognise.
Each recipe is designed around either the Unflavoured or Cocoa Whey -- both are two-ingredient powders with nothing added that doesn't need to be there.
Macros are calculated per serving as shown. Adjust quantities to hit your daily protein targets -- increasing milk to whole or using Greek yoghurt will shift the numbers slightly.
The Recipes
| # | Recipe | Protein | Best for |
|---|---|---|---|
| 01 | The Daily Driver | 36g | Daily snack replacement |
| 02 | Green & Clean | 32g | Light morning shake |
| 03 | Cocoa Recovery | 38g | Post-training |
| 04 | Berry & Yoghurt | 40g | High-protein snack |
| 05 | The Night Shake | 34g | Before bed |
01 - The Daily Driver

Unflavoured whey, banana, oats - simple, filling, done.
Kcal: 390 | Protein: 36g | Carbs: 42g | Fat: 7g
Ingredients
- 1 scoop Plain Protein Co. Unflavoured Whey (30g)
- 1 ripe banana
- 40g rolled oats
- 250ml whole milk (or oat milk)
- 1 tsp honey
- 4-5 ice cubes
Method
- Add the oats to the blender first and pulse briefly to break them down - this gives a smoother texture.
- Add the banana, milk, honey and ice.
- Add the whey protein last, on top.
- Blend on high for 30-40 seconds until fully smooth.
- Serve immediately.
Tip: Freeze the banana the night before for a thicker, colder shake with no ice needed.
This is a snack replacement shake. The oats slow digestion and keep you full for 2-3 hours.
02 - Green & Clean

Spinach, apple, ginger - you won’t taste the greens.
Kcal: 310 | Protein: 32g | Carbs: 28g | Fat: 5g
Ingredients
- 1 scoop Plain Protein Co. Unflavoured Whey (30g)
- 2 large handfuls fresh spinach
- 1 green apple, cored and chopped
- 1cm fresh ginger, peeled
- 200ml cold water
- 1/2 lemon, juiced
- 4-5 ice cubes
Method
- Blend the spinach and water first until fully liquid - no green chunks.
- Add the apple, ginger, lemon juice and ice.
- Blend again on high for 20 seconds.
- Add the whey protein and blend for a final 10-15 seconds.
- Taste - add a little honey if you prefer slightly sweeter.
Tip: Unflavoured whey is key here. A vanilla or sweetened powder would clash with the ginger and lemon.
Lower calorie option - well suited as a morning shake when you’re eating a proper breakfast alongside it.
03 - Cocoa Recovery

Post-training chocolate shake. Fast protein, real ingredients.
Kcal: 420 | Protein: 38g | Carbs: 38g | Fat: 9g
Ingredients
- 1 scoop Plain Protein Co. Cocoa Whey (30g)
- 1 banana
- 250ml whole milk
- 1 tbsp almond butter (or peanut butter)
- 1 Medjool date, pitted (optional - adds sweetness and fast carbs)
- 4-5 ice cubes
Method
- Add all ingredients to the blender.
- Blend on high for 30 seconds.
- Check consistency - add a splash more milk if too thick.
- Drink within 30-45 minutes of training.
Tip: The date is optional but earns its place post-training - natural sugars help replenish glycogen quickly alongside the protein.
Higher calorie profile makes this best placed after a hard session rather than as a casual snack.
04 - Berry & Yoghurt

Thick, high-protein, no banana. Proper texture.
Kcal: 350 | Protein: 40g | Carbs: 26g | Fat: 6g
Ingredients
- 1 scoop Plain Protein Co. Unflavoured Whey (30g)
- 150g frozen mixed berries
- 150g full-fat Greek yoghurt
- 100ml water or milk
- 1 tsp vanilla extract
- Small handful of ice
Method
- Add the frozen berries and liquid first.
- Add the Greek yoghurt and vanilla.
- Blend on high for 20 seconds.
- Add the whey protein and blend for a final 15 seconds.
- This one is thick - eat with a spoon or add more liquid to thin it.
Tip: The combination of whey and Greek yoghurt brings this to ~40g protein - useful if you’re having a lighter food day.
Full-fat yoghurt gives a far better texture than low-fat. The fat content is not the enemy here.
05 - The Night Shake

Slow-digesting, calming, built for before bed.
Kcal: 360 | Protein: 34g | Carbs: 22g | Fat: 12g
Ingredients
- 1 scoop Plain Protein Co. Unflavoured Whey (30g)
- 200ml warm (not hot) milk
- 1 tbsp almond butter
- 1 tsp raw honey
- 1/2 tsp cinnamon
- 1/4 tsp turmeric (optional)
Method
- Warm the milk gently - do not boil.
- Add milk and remaining ingredients to a blender.
- Blend for 15-20 seconds until smooth and frothy.
- Pour and drink slowly. No ice - this is a warm shake.
Tip: Do not use hot milk - it can denature the whey protein and affect mixability. Warm is the sweet spot.
Whey alone is fast-absorbing. The fat from almond butter slows digestion here, making this a more sustained release than a standard post-workout shake.
Questions or feedback: hello@plainprotein.co.uk