Position broiler rack 6 inches from heat source and preheat broiler. Line a large baking sheet with aluminum foil.
In a small bowl, mix sugar and spices. One at a time, dip figs, cut side down, in sugar mixture to coat. Then coat figs a second time with sugar mixture and arrange cut side up on baking sheet. Broil figs, watching closely, for about 4 minutes, or until sugar melts and begins to caramelize and figs soften slightly and begin to ooze their juice.
Divide figs among 4 bowls. Spoon 1/3 cup of Vanilla Ice Cream into each bowl and sprinkle with hazelnuts.
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