Step 1: Combine sugar, vinegar and water in a microwave-safe casserole dish until well mixed and cook in the microwave on high for 4 minutes, tilt bowl to swirl syrup around the dish and continue to cook one minute at a time without stirring until mixture is golden and reaches 300° F on a candy thermometer.
Step 2: While the sugar mixture is caramelizing, line a 6 1/2" x 10" cake pan with foil and generously grease the foil.
Step 3: Sprinkle half the sesame seeds and all of the peanuts evenly onto the pan.
Step 4: When the sugar mixture has reached the required temperature, carefully pour the sugar mixture over the nuts in the baking pan.
Step 5: Smooth the surface by pressing down with another pan of the same size, grease the bottom.
Step 6: Sprinkle with the remaining sesame seeds and cool slightly.
Step 7: While candy is still warm, remove from pan by lifting the foil. Cut into 2" by 1" pieces and then allow to cool completely.