Step 1

Set immersion circulator to 200°F and place in a medium saucepan filled with tap water. Grind the cannabis buds into small pieces and place in the vacuum-sealable bag with 3 tablespoons distilled water. Using the vacuum sealer, seal the bag completely.

Step 2

When the circulator reaches 200°F, drop the sealed bag into the water and decarb for 30 minutes, turning the bag every 5 to 10 minutes to ensure the cannabis is submerged in water.

Step 3

Transfer the bag to a bowl of ice water to stop the cooking and preserve the terpenes; let cool. Melt butter in a small saucepan; add cannabis, and simmer, stirring often, for 20 minutes. Remove the saucepan from the heat and let the butter mixture steep for another 30 minutes.

Step 4

Strain the mixture through a fine mesh sieve into a shallow container with an airtight lid. You’ll have 12 tablespoons (3/4 cup) of cannabutter, with about 43mg of THC per tablespoon based on a 20% THC strain. Keep refrigerated and use it within 30 days.