Decarboxylate the cannabis first by heating it in an oven at about 220–240°F for 30–40 minutes
Grind the decarboxylated cannabis lightly
Add water to a pot and bring it to a gentle simmer
Add a fat source such as butter, coconut oil, or whole milk
Add the cannabis to the simmering water and fat mixture
Simmer on low heat for 15–30 minutes, stirring occasionally
Strain the liquid through a fine mesh strainer, cheesecloth, or tea filter
Add tea leaves, herbs, honey, lemon, or other flavorings if desired
Serve warm and start with a small amount to gauge potency