Using a small knife, trim the stems off the figs and cut the figs in half lengthwise.
Place the figs and the wine in a small saucepan, bring to a simmer over medium-low heat, and simmer about 20 minutes until figs have absorbed most of the wine and they are tender and fat.
Remove figs with a slotted spoon to a bowl and reserve for later.
Some reduced wine should remain for sauce; return wine to medium heat and simmer again until reduced by half and a syrupy liquid remains.
Let cool slightly.
Slice demi-baguette into 1/2-inch slices.
Lay the bread slices on a baking sheet and toast lightly in the oven, about 5 minutes.
Remove from oven and let cool.
Spread a tablespoon of ricotta on each crostini then lay a small piece of prosciutto on top of the cheese.
Place fig halves on top of the meat and finish by drizzling the remaining reduced wine on top of the figs.