The easiest fudge on the planet

This is one of the easiest and tastiest recipes for fudge ever! I can't remember where I got it, but I tweaked it a bit.
1 can sweetened condensed milk (you can use fat free)
1 c peanut butter
1 pkg semi sweet cocolate chips
1/2 pkg Heath Toffee bits

In a saucepan over medium heat, melt the chocolate chips and sweetened condensed milk until the chips are melted. Add peanut butter and stir. You will see the glossy look go away Stir in the toffee bits. Pour into a prepared foil pan (spray it first with non stick cooking spray). I have used the small pans for a toaster oven, which make a great gift, in the pan!
I have found a variation without peanut butter and it works too.