rigz is right, it should already be in the butter. i use a fondue pot, but really any pot will do as long as you keep an eye on it. some water and a stick of butter(depending on how much you need and how strong you want them) will work fine but you can substitute with some cooking oil if you wanted, then add your ground up herbs and make sure it doesnt get too hot and burn. it im not too picky about straining out all the plant matter, i just pour everything into a tupperware and put it in the fridge, it will separate as it cools and then you have butter that you can use for whatever you normally use butter for.
simplest edibles besides just eating buds are fire/gram crackers
mix a little finely ground pots in a spoonful of peanut butter (nice oily/fatty kind) and put between two gram crackers. wrap in aluminum foil and bake at 275-80 for 20-30 min. definitely going to need a big glass of milk too.