Microwave Directions:
   Butter large baking sheet. In microwave proof bowl combine peanuts, sugar, corn syrup & salt. Microwave on high until bubbles vigorously about 6 mins. Remove from micro, stir in butter & vanilla. Cook on High until light gold, 3 mins. Remove from microwave and quickly add baking soda & stir briskly. Immediately pour out onto prepared baking Hsheet. Shake baking sheet from side to side to spread brittle as thinly as possible. Let it stand until cold and hard, about 2 hours. Break brittle into pieces. Store in airtight container at room temperature for up to 1 month.