Spread both sides of bread with butter. Cut into quarters to make triangles. Arrange bread triangles, slightly overlapping, in a 5 cup-capacity, 16cm x 25cm heatproof, microwave-safe dish. Sprinkle with figs.
Whisk egg yolks, eggs, milk, sugar and vanilla together in a large jug. Pour egg mixture over bread. Press bread down gently into egg mixture. Set aside for 10 minutes to allow egg mixture to be absorbed.
Microwave, uncovered, on MEDIUM (50%) for 10 minutes or until egg mixture has just set.
Meanwhile, preheat grill on medium. Place bread and butter pudding under grill. Grill for 5 minutes or until top is golden. Serve dusted with icing sugar.