This'll take some practice but once you get it, it's super easy. Not sure if it's truly the "vanilla" recipe you're looking for though....
2 cups brown sugar
1 cup heavy cream
1 Tbsp butter
1 tsp vanilla
Blend the cream and sugar using a spoon. Microwave for about 5 minutes on high. Then remove from Mic and use electric hand mixer on low for about 3 minutes. Return to Mic for another 5 on high. Remove from Mic, add a Tbsp of butter and a tsp of vanilla. Electric mixer for about 5 minutes, or until you see that it's starting to get a shine to it and cling to the sides of the bowl. Pour it into a loaf pan lined with wax paper and let it set in the fridge for a couple hours. THAT'S IT. The whole process takes less that 30 minutes and uses only a microwave, an electric mixer, and a microwave-safe bowl.
Like I said, it may take a few trys to get the consistency right as each microwave is a little different.
If you screw it up and it's too soft, doesn't set. Save it and use it as an ice cream topping. Or a glaze on a ham!
If it sets too hard, it's still good, just more of a candy. It coould be crumbled and used as topping on ice cream, cakes, etc.. Kids will still love it.