Here's what you'll need:
- 2 cups sugar
- 1/2 cup milk
- 3/4 cup peanut butter
- 1 tsp vanilla
Bring the sugar and the milk to a boil, then boil it for 2 1/2 minutes. Do not over or underboil. This is crucial. Remove from heat, and mix in the peanut butter and vanilla until creamy. Pour into a greased (or parchment papered) 8x8 baking dish and freeze for 15 minutes. Remove from the freezer and allow the fudge to warm to room temperature.