Place cooling rack on cookie sheet or waxed paper to catch glaze drips. In 3-quart saucepan, stir powdered sugar, 1/2 cup water, the corn syrup and 2 teaspoons almond extract. Heat over low heat, stirring frequently, until sugar is dissolved; remove from heat. Stir in hot water, 1 teaspoon at a time, until glaze is pourable. Turn each mini-cake on cooling rack so top side is down. Pour about 1 tablespoon glaze over each cake, letting glaze coat the sides. Let stand 15 minutes.