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Fudgy Pot Brownies from Scratch

A fudgy 8-by-8 cocoa brownie made with cannabutter, with simple math for the dose in each of 16 squares, a box-mix shortcut and careful storage.

Brownies are the classic edible, and this pot brownies recipe makes a fudgy 8-by-8 pan from scratch with cannabutter. Bake it for National Brownie Day, an unofficial food holiday on December 8, or any day, but do the dose math first.

Pot Brownie Dosage, Square by Square

The pan's 8 tablespoons of butter split their THC across 16 squares, so swapping some cannabutter for plain butter lowers the dose. Using an example butter of about 35 mg per tablespoon (see the recipe card):

CannabutterPlain butterTHC in the pan, at mostPer square, at most
1 tbsp7 tbsp35 mgabout 2.2 mg
2 tbsp6 tbsp70 mgabout 4.4 mg
4 tbsp4 tbsp140 mgabout 8.8 mg
8 tbspnone280 mgabout 17.5 mg

Real amounts run lower. Cut the full grid before serving, and estimate your own butter with our cannabutter guide and THC dosage guide.

What You Need for This Pot Brownies Recipe

Cocoa, flour, baking powder and salt form the dry mix; white sugar sweetens, and brown sugar adds a fudgier chew. Add 2 eggs, vanilla, softened butter and any crushed mint chocolate. Out of cannabutter? Order flower ahead from the High Society menu, then grab it in store or curbside.

How to Make Pot Brownies

Beat the softened butters with both sugars until smooth, scraping the bowl so the THC spreads evenly. Add the eggs and vanilla, fold in the dry mix until just combined, and spread the batter to an even depth so corners match the middle. Bake until just set; cool before cutting.

Box-Mix Shortcut

Short on time? Use a box mix and replace the oil or butter it calls for with the same amount of an infused blend, such as melted cannabutter or canna-oil topped up with plain. Divide the THC you added by the number of pieces, then cut exactly that grid.

Storage and Labeling

Airtight at room temperature, squares keep a few days; for longer, wrap and freeze them. Mark the container "THC" with today's date and the milligrams per square, and store it up high, apart from regular sweets. Poison center data from 2017 to 2021 show that nearly all reported edible exposures in children under 6 happened in a home. If a child gets into them, Poison Help is free and open around the clock at 1-800-222-1222. Michigan lets adults 21 and older give cannabis to other adults 21 and older, within legal limits, if nothing comes back in return and the gift isn't advertised. Only licensed businesses may sell it, so never sell your brownies.

Recipe

Makes
16 squares (8-by-8-inch pan)
Prep time
15 minutes
Cook time
25 minutes

Ingredients

  • ½ cup all-purpose flour
  • ⅓ cup unsweetened cocoa powder
  • ¼ teaspoon salt
  • ¼ teaspoon baking powder
  • 8 tablespoons (½ cup) butter in total, softened: your measured cannabutter plus plain unsalted butter (see the dosing note)
  • ½ cup granulated sugar
  • ½ cup packed brown sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • ⅓ cup crushed mint chocolate pieces (optional)

Steps

  1. Heat the oven to 350°F. Line an 8-by-8-inch pan with parchment, leaving an overhang on two sides.

  2. Whisk the flour, cocoa, salt and baking powder in a small bowl.

  3. In a large bowl, beat the cannabutter, plain butter and both sugars until smooth and well blended, about 1 minute, scraping the bowl so the cannabutter is spread evenly.

  4. Beat in the eggs one at a time, then the vanilla.

  5. Fold in the dry ingredients just until no streaks of flour remain.

  6. Spread the batter to an even depth, smoothing it into the corners, and scatter the mint chocolate over it.

  7. Bake 22 to 27 minutes, until the center is just set and a toothpick comes out with a few moist crumbs.

  8. Cool completely in the pan, lift out by the parchment and cut a 4-by-4 grid into 16 equal squares.

Frequently asked questions

How much cannabutter goes in pot brownies?

As much as your target dose allows. Multiply the dose you want per square by 16 for the pan total, then divide by your butter's milligrams per tablespoon. For about 2 mg a square with the example butter, that's roughly 1 tablespoon of cannabutter plus 7 of plain.

How strong is one pot brownie?

It depends on your flower, your infusion and how evenly you mixed; taste won't tell you. A square from an all-cannabutter pan can hold far more THC than the 10 mg Michigan allows per serving of a store-bought adult-use edible. Do the math, and start with half.

How long do pot brownies take to kick in?

Expect a wait of roughly 30 to 120 minutes, and full effects may need up to 4 hours to build, so a slow start doesn't mean a weak brownie. Effects can last several hours. If one hits harder than planned, see our tips for coming down comfortably.

Sources

  1. Health Canada: Cannabis, lower your riskscanada.ca
  2. Grotenhermen F. (2003), Pharmacokinetics and pharmacodynamics of cannabinoids, Clinical Pharmacokineticspubmed.ncbi.nlm.nih.gov
  3. Tweet M.S. et al. (2023), Pediatric edible cannabis exposures and acute toxicity: 2017-2021, Pediatricspubmed.ncbi.nlm.nih.gov
  4. America's Poison Centers: Poison Help line, 1-800-222-1222poisoncenters.org
  5. Michigan Cannabis Regulatory Agency: Technical Bulletin, Maximum THC Concentrations for Marijuana-Infused Products (April 24, 2025, PDF)michigan.gov
  6. Michigan Judicial Institute: Controlled Substances Benchbook, sec. 8.14, Scope of the MRTMA (gifting between adults)courts.michigan.gov

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