Flambe Blueberries

1/4 cup (1/2 stick) sweet, unsalted butter
1 small bag frozen blueberries
3 tablespoons granulated sugar
Orange liqueur
Vanilla ice cream

In a large skillet melt the butter over low heat. Add the berries and sprinkle with the sugar. Cook until they give off liquid and collapse. This will take about 8 minutes. Flamb