Banana Bourbon Cake with Bourbon Creme Sauce

Serves 12.

1 1/2 cups coarsely chopped pecans
1 1/2 cups golden raisins
3 cups unbleached all-purpose flour
3 tablespoons baking powder
1/2 teaspoon nutmeg
1 teaspoon ground cinnamon
1 teaspoon ground ginger
1 cup unsalted butter, room temperature
2 cups granulated sugar
3 ripe bananas
4 eggs
3/4 cup bourbon

Bourbon Cr