Warm pot and melt butter around inside edges.
Add Milk and Sugar, cook till dissolved.
Add Baker's Chocolate and stir until fudge reaches 245°F
Fudge should form ball into ball when dropped from spoon into cold water, then rolled between fingers.
Add Peanut Butter and stir till blended
Remove from heat and add Vanilla.
Pour into greased, shaped-pan quickly and let cool. I use silicon mold trays