Toffee Fondue

1/2 cup butter
2 cups dark brown sugar
1 cup white corn syrup
2 tablespoons water
1 (14 ounce) can sweetened condensed milk
1 teaspoon vanilla extract

Melt the butter in a bowl over a pan of hot water, and add all the other ingredients except the vanilla extract. Stir until thick, then add the vanilla extract. Place in a fondue pot to keep warm, and serve with pieces of apples and pears to dip.