Line a large cookie sheet with parchment paper, wax paper, or a silicone mat. In a deep microwave-safe bowl, combine sugar and corn syrup. Mix thoroughly and microwave on HIGH for 4 minutes.
Stir in peanuts and microwave on HIGH until the mixture is light brown, about 3 to 5 minutes longer.
Stir in butter and vanilla until combined. Microwave on HIGH until peanuts are lightly browned, about 1 to 2 minutes longer.
Stir in baking soda until mixture is light and foamy. Pour onto the prepared pan and cool for 30 minutes.
Break into pieces to serve and store in an airtight container.
Wallace's is a great place to visit even if you're not looking to stock up on gardening supplies. It's beautiful inside and out, with some space dedicated to inside decor and jewelry, and tons more to the beautification of your patio, lawn, and garden. I went there on a mission to find my mom a succulent and a tiger lily for Mother's Day and we were all thrilled with the results, so much so that I returned make an identical purchase for my grandmother!