Gramma's Easy Peanut Butter Fudge

Ingredients

• 2 pounds brown sugar 
• 0.3 cup butter 
• 1.3 cups milk 
• 1.5 cups peanut butter 
• 1 teaspoon vanilla extract 

Equipment

• sauce pan

Directions

1. In a medium saucepan over medium heat, combine milk and sugar.
2. Heat to between 234 and 240 degrees F (112 to 116 degrees C), or until a small amount of syrup dropped into cold water forms a soft ball that flattens when removed from the water and placed on a flat surface.
3. Remove from the heat and stir in margarine, peanut butter and vanilla. Quickly spread into a 9x13 inch dish. Allow to cool almost completely before cutting into squares. Store in an airtight container.