01 -
Preheat oven to 350°F and thoroughly grease a Twinkie or mini loaf pan. In a medium bowl, whisk together flour, baking powder, and salt. In a separate large bowl, cream softened butter with granulated sugar until light and fluffy. Add eggs one at a time, beating well after each addition, then blend in vanilla extract. Alternately add the dry ingredients and milk to the creamed mixture, mixing just until combined. Fill each mold about three-quarters full with batter.
02 -
Bake for 18 to 22 minutes, or until a toothpick inserted into the center comes out clean. Allow cakes to cool in the pan for several minutes, then transfer to a wire rack and cool completely before proceeding.
03 -
In a small saucepan over medium heat, combine diced peaches, granulated sugar, cornstarch, and lemon juice. Cook, stirring frequently, until peaches soften and the mixture thickens. Remove from heat and allow filling to cool to room temperature.
04 -
With a paring knife or skewer, hollow out the center of each cooled cake. Use a spoon or piping bag to fill the center cavity of each cake with the peach filling.
05 -
Whisk together powdered sugar, heavy cream or milk, and vanilla extract until smooth and pourable. Drizzle the glaze over the filled cakes and let set for several minutes before serving.