I posted a similar recipe before. It definitely works. Just to give some people options, I'll repost it here.

Ingredients
High-grade bud
Milk (regular soy milk or whole cow milk)
Concentrated Chai Mix

Equipment
Measuring cups
Cooking pot, stove, and oven
Glass Bottle or Jar
Aluminum Foil
Strainer (optional)

[1] Prepare Bud
To convert THCA to THC, grind up all the bud into little bitty pieces. Rip off a sheet of foil and fold up the edges, then put the ground bud in a thin layer on the flat center.

7 minutes at 325 F

[2] Magic Milk
Bring milk to a near boil on stove top. Reduce heat to low and stir in the cooked bud (get every last piece). Stir frequently on the low heat for 10 minutes.

Pour milk into the glass bottle, seal the top, and give it a shake. Let stand for 15 minutes (to cool). Put bottle in fridge.

[3] Milk to Chai
Combine equal portions magic milk and chai mix. Serve over ice. At this point you can strain out the bud bits from the milk by pouring through a strainer.

Measurements
A good serving is 2 cups of chai, so that means one cup of milk. Let's say you want 1/4 g per serving with four servings, then use 4 cups milk and 1 gram of bud.

http://boards.cannabis.com/recipes/8...high-chai.html