1 cup brown sugar                  1 teaspoon butter
1 cup boiling water                1/2 teaspoon vanilla
1/2 cup sugar (ie: white sugar)
1.   Combine brown sugar and water and bring to a boil.
2.   Caramelize whte sugar by heating it in a frying pan until sugar
    melts and turns brown.
3.   Add brown sugar syrup from step 1; simmer until smooth and thick.
4.   Pour into a pitcher containing butter and vanilla.