Unlock: Brownie Adventures
Congratulations, you’ve found the final hidden recipe!
You’ve deciphered and unlocked a hidden treasure: a brownie recipe as clever and satisfying as an Unlock! puzzle scenario. Just like the game’s cards, clues, and story-driven challenges, this treat is full of surprises. Sweet potato puree adds fibre, maple syrup brings gentle sweetness, nut butter and pecans make it filling, and rich cocoa gives it a chocolatey pop.
Every bite is a reward for your sleuthing skills: proof that thoughtful moves lead to delicious results. Whether you’re celebrating a victory over a fiendish puzzle or sneaking a moment of indulgence between clues, this recipe turns your culinary adventure into a wholesome treat.

Why Unlock brownies are the best
Just like an Unlock puzzle, these brownies are flexible, adaptable, and built to work for everyone at the table.
- Dairy-free
- Vegetarian
- Vegan – all plant-based!
- Gluten-free – Use certified gluten-free oat flour if required. Regular oats may be cross-contaminated with gluten during processing.
- Easy to make nut-free: This recipe contains nuts but if you want to go nut-free swap the peanut butter for sunflower seed butter AND omit the pecans.
Sweet Potato Purée
First up, let’s make some fibre packed sweet potato purée, you’ll need 1 cup (240 g) to make 12 brownies.
Top tips:
- 1 large sweet potato ≈ 1 cup purée.
- Leftover roasted or microwaved sweet potato also works – just mash and measure.
- Make plenty and freeze extra ready for next time
- Out of sweet potato – pumpkin purée or steamed carrot purée can make great substitutes, check out the CarcaSCONEs recipe in the book for more purée variation ideas!
Microwave (fastest)
- Peel and dice 1 large sweet potato.
- Add to a microwave-safe bowl with 1–2 tbsp water.
- Cover loosely and microwave on high for 6–8 min, stirring once, until very soft.
- Mash or blitz until smooth.
Instant Pot (hands-off)
- Peel and dice 1 large sweet potato.
- Add to the Instant Pot with 1 cup water and place on a trivet (or cook directly in the water).
- Pressure cook on High for 5 min, then quick release.
- Drain and mash or blitz until smooth.
Oven (slow but simple)
- Halve 1 large sweet potato lengthways and place cut-side down on a lined baking tray.
- Bake at 375°F | 190°C | fan 170°C | gas 5 for 25–30 min until very soft. Scoop out the flesh and mash until smooth.
Got your purée ready? It’s baking time!
Unlock: Brownie Adventures
Equipment
- Mixing bowl
- Blender
- Lined baking tin
- Oven
- Cooling rack
Ingredients
- 1 cup (240 g) sweet potato purée
- ⅔ cup (67 g) oat flour made from blended rolled oats
- ½ cup (125 g) peanut butter
- ⅔ cup (215 ml) maple syrup
- 1½ tbsp (20 g) olive oil
- ½ cup (40 g) cocoa powder
- 1 tsp vanilla extract
- ¼ tsp salt
- 1 tsp baking powder
- ½ cup (55 g) pecans optional, raw, chopped
Instructions
- Make 1 cup (240 g) sweet potato purée (see methods above). Allow to cool slightly.
- Preheat oven to 375°F | 190°C | fan 170°C | gas 5. Line a baking tin.
- Blend rolled oats into a fine flour in a high-speed blender (~1 cup of rolled oats will yield ⅔ cup oat flour).
- Into the blender (or food processor) with the oat flour, add: 1 cup (240 g) sweet potato purée, ½ cup (125 g) peanut butter, ⅔ cup (215 ml) maple syrup, 1½ tbsp (20 g) olive oil, ½ cup (40 g) cocoa powder, 1 tsp vanilla extract, ¼ tsp salt + 1 tsp baking powder. Blend until smooth.
- Pour batter into tin. Smooth the top. Optionally chop and top with ½ cup (55 g) pecans.
- Bake 25–30 min, until edges look set and centre is just firm. A skewer will come out clean.
- Cool in tin 15 min, then transfer to a rack. Slice once fully cooled for clean edges.
Nutrition per Serving
| Nutrient | Amount | Traffic Light Label |
|---|---|---|
| Calories | ~215 kcal | 🟠 Medium |
| Fat | ~12.5 g | 🟠 Medium |
| Saturated Fat | ~2 g | 🟠 Medium |
| Sugars | ~16.5 g | 🔴 High (mostly from maple syrup + sweet potato) |
| Salt | ~0.1 g | 🟢 Low |
| Protein | ~5 g | ✅ Highlight |
| Fibre | ~4 g | |
| Cholesterol | ~0 mg | 🟢 Low |

A recipe inspired by Unlock
This recipe from the Winner Winner Chickpea Dinner cookbook takes its theme from the series of Unlock games, published by Space Cowboys.
To learn more about the game and its creators, visit the Unlock page below.
With thanks to Space Cowboys for allowing us to create and share this recipe.
