Strawberry and White Chocolate Mini Cheesecakes

Name: Strawberry and White Chocolate Mini Cheesecakes
Ingredients: 3 1/2 ounces gingersnap cookies (about 13); 2 1/2 tablespoons unsalted butter, melted; 3 1/2 ounces high-quality white chocolate (such as Lindt or Perugina), chopped; 1/2 teaspoon unflavored gelatin; 1 8-ounce package Philadelphia- brand cream cheese; 1/2 cup plain whole-milk yogurt or sour cream; 3/4 teaspoon rose water or vanilla extract; 1/4 cup sugar; 1 8-ounce container fresh strawberries, hulled, halved or quartered if large, divided; 1 tablespoon powdered sugar