In a small saucepan, whisk together sugar & cornstarch. Add raspberries & water; cook over medium-high heat until thickened & clear. Remove from stove & press through a wire mesh to make a puree. Discard seeds. Add extract if using. Set aside.
Peach Sauce
Drain peach juice into a measuring cup. Set peaches aside. In a saucepan, combine 1/2 cup plus 2 Tbsp peach juice, sugar & cornstarch. Cook, stirring, until thick & bubbly. Add the peaches & vanilla. Stir to blend, set aside until ready to use.
Ginger Cakes
Preheat over to 375 F. Butter 4-5 mini bundt pans. In a bowl, combine all cake ingredients & beat only until smooth. Divide between bundt pans. Place pans on a baking sheet & bake for 15 minutes or until cakes have risen & test done with a toothpick is inserted. Remove from oven, cool for a few minutes then turn over on serving plates. Top with warm peach sauce & raspberry coulis. Add a scoop of vanilla ice cream if you wish.