Homemade edibles should still have an even dosage. You can figure that dosage out by calculating the strength of the THC flower you have chosen to infuse into an edible.
Let’s use 10% THC as an example. To get the per-milligram amount, divide 1000 by 10 (one gram of cannabis is 1000 mg). One gram of 10% THC cannabis is equal to 100 mg of THC per gram.
If you’re making 12 cookies, adding 3.5 grams (one eighth) of cannabis will give you 12 cookies of about 29.1 mg each, or 24 cookies with 14.5 mg each. If your cannabis is 24 percent, you’ll have 240 mg of cannabis in one gram. This would yield 12 cookies of 60 mg per cookie, or 24 cookies of 30mg each.