Cannabis Mint Slice Brownies
Cannabis Mint Slice Brownies. Approximately ~17.5mg THC per brownie at full strength. 3 hrs total, 16 pieces yield.
These Cannabis Mint Slice Brownies are the ultimate indulgent treat — a triple-layer masterpiece with fudgy chocolate brownies on the bottom, a smooth mint buttercream centre, and a glossy dark chocolate topping. Inspired by the classic Aussie mint slice biscuit but elevated to brownie status, they’re perfect for special occasions or when you want to impress fellow cannabis enthusiasts.
Each brownie contains approximately 17.5mg THC when made with standard cannabutter (7g cannabis per 100g butter), making them ideal for experienced users. New to edibles? Start with half a piece and wait 90 minutes, or calculate your exact dose with our free Edibles Dosage Calculator.
Lockable storage box with combination lock — essential for keeping cannabis edibles away from children.
View on Amazon → Candy ThermometerPrecision candy thermometer for caramels, toffees, and sugar work.
View on Amazon → MagicalButter Machine MB2EAutomated botanical extractor — makes cannabutter, oils, and tinctures with the push of a button. Amazon's Choice.
View on Amazon → Leaf Chocolate Moulds 2-pack (Silicone)Silicone leaf-shaped moulds for chocolates and gummies — food-grade, easy release, perfect for themed cannabis edibles.
View on Amazon →THC Per Serving
Ingredients
Cannabis Mint Slice Brownies
This recipe uses the cannabis-infused ingredient below. Tap for our step-by-step preparation guide.
- 50g cannabutter, melted →
- 25g regular butter, melted
🍫 Brownie Base
- 200g dark chocolate (70%), chopped
- 150g caster sugar
- 3 large eggs
- 75g plain flour
- 25g cocoa powder
- 1/2 tsp salt
🌱 Mint Layer
- 125g butter, softened
- 250g icing sugar
- 2 tbsp milk
- 1 tsp peppermint extract
- 2-3 drops green food colouring (optional)
✨ Chocolate Topping
- 150g dark chocolate, chopped
- 75ml thickened cream
- 1 tbsp butter
Equipment You’ll Need
Digital Kitchen Scale (0.01g)
Precision scale for accurate cannabis and ingredient measurements — essential for consistent dosing.
View on Amazon →
Medicine Lock Box (Child-proof, Combination)
Lockable storage box with combination lock — essential for keeping cannabis edibles away from children.
View on Amazon →
Leaf Chocolate Moulds 2-pack (Silicone)
Silicone leaf-shaped moulds for chocolates and gummies — food-grade, easy release, perfect for themed cannabis edibles.
$17
View on Amazon →
Method
Prepare your workspace by preheating oven to 180°C and lining a 20x20cm brownie pan with baking paper, leaving overhang for easy removal.
Melt the dark chocolate and both butters together using a double boiler or microwave in 30-second bursts, stirring until smooth. Set aside to cool slightly.
Whisk eggs and caster sugar until pale and thick (about 3-4 minutes). Gradually fold in the cooled chocolate mixture until just combined.
Sift together flour, cocoa powder, and salt. Gently fold into the chocolate mixture until just incorporated — don’t overmix.
Pour batter into prepared pan and bake for 25-30 minutes until a skewer inserted comes out with a few moist crumbs. Cool completely in the pan.
Make the mint layer by beating softened butter until light and fluffy. Gradually add icing sugar, then milk, peppermint extract, and food colouring if using.
Spread mint buttercream evenly over cooled brownies and refrigerate for 30 minutes until set.
Prepare chocolate topping by heating cream until just simmering. Pour over chopped chocolate and butter, let sit 2 minutes, then stir until glossy and smooth.
Pour chocolate ganache over mint layer, spreading evenly with an offset spatula. Refrigerate for at least 2 hours until completely set before cutting.
Expert Tips
Perfect Layers
Don’t rush the setting process — each layer needs time to firm up properly for clean, distinct layers when cut.
Mint Intensity
Start with 1/2 teaspoon peppermint extract and taste — it’s potent stuff and you can always add more.
Half-Strength Option
Replace half the cannabutter with regular butter for a milder 8.8mg per brownie — perfect for sharing with less experienced users.
Temperature Control
Keep brownies refrigerated until serving, especially in warm weather — the mint layer can soften quickly.
Clean Cutting
For professional-looking squares, mark your cutting lines with a ruler before cutting, and clean your knife between cuts.
Label Everything
These look like regular brownies — always label with contents, date, and dosage to avoid accidental consumption.
Storage Guide
| Method | Duration | Notes |
|---|---|---|
| Room temperature | 2 days | Airtight container, cool location |
| Refrigerated | 7 days | Best for maintaining layers |
| Frozen | 3 months | Wrap individually, thaw 30 minutes |
Important Safety Information
- Calculate your dose before cooking — use our free Edibles Dosage Calculator.
- Start low, go slow. If this is your first time with edibles, eat half a serving (~8.8mg) and wait at least 90 minutes before having more.
- Onset time: 30-120 minutes. Do not eat additional servings within this window.
- Duration: Effects can last 4-8 hours.
- Do not drive or operate machinery after consuming cannabis edibles.
- Store securely — label all containers with contents, date, and dosage. Keep away from children, pets, and unsuspecting housemates.
- Legal context: Cannabis remains illegal for recreational use in most Australian states. Medicinal cannabis is available through TGA-approved prescriptions. Know your state’s laws.
- Emergency: Australian Poisons Information Centre — 13 11 26 (24 hours)
Enjoyed This Recipe?
Get new cannabis recipes delivered weekly — with per-serve dosing guidance.
We respect your privacy. Privacy policy.
Frequently Asked Questions
Absolutely! Using 25g cannabutter and 50g regular butter will give you approximately 8.8mg THC per brownie — perfect for beginners or those who prefer a milder dose. The texture and flavour remain exactly the same.
Cannabis edibles typically take 30-120 minutes to take effect, with peak effects around 2-4 hours. These rich brownies may take slightly longer to digest than lighter edibles, so be patient and don’t take more within the first 90 minutes.
Yes, decarboxylation is essential for activating THC. If you’re making your own cannabutter, decarb your cannabis at 110°C for 30-40 minutes before infusing. Store-bought cannabutter should already be decarboxylated.
Store in the refrigerator for up to 7 days in an airtight container — the mint layer stays firmer when chilled. For longer storage, wrap individual pieces and freeze for up to 3 months. Always label with contents and dosage.
If you’ve consumed too much, stay calm and find a safe, comfortable space. Drink water, try to relax, and remember the effects are temporary. Contact the Australian Poisons Information Centre on 13 11 26 if you’re concerned, or emergency services if experiencing severe symptoms.
Yes! Replace the 50g melted cannabutter with 50g melted cannabis coconut oil. The brownies will have a subtle coconut flavour and the same potency. Cannabis coconut oil works particularly well in chocolate recipes.
Popular With Cannabis Cooks
Smell-proof UV glass jar — blocks light degradation and locks in freshness for months.
View on Amazon → MagicalButter DecarBox KitSilicone decarboxylation box with digital thermometer — pairs perfectly with the MagicalButter Machine for complete activation.
View on Amazon → Leaf Chocolate Moulds 2-pack (Silicone)Silicone leaf-shaped moulds for chocolates and gummies — food-grade, easy release, perfect for themed cannabis edibles.
View on Amazon →More Cannabis Recipes
As an Amazon Associate, Cannabis Cuisine earns from qualifying purchases. All product recommendations are independently chosen.