In a saucepan, combine the frozen cherries and blueberrieswith the sugar. Bring to a boil over medium heat, then reduce to a simmer. Simmer for about 5-10 minutes, until the fruit is very soft, and some of the liquid has evaporated.
Remove from the heat, and immediately stir in the fresh fruit (pit the fresh cherries, and cut them in half first). Let the compote cool completely before serving with the cake.
Cool completely before assembling with the toppings. If your cupcakes are domed, you may want to slice off a small portion of the domed tops so that you can more easily pile the cupcakes with toppings.
Serve each cupcake topped with the fruit compote and the whipped cream.
Notes
You can make the compote up to two days in advance, keeping it stored in an airtight container in the refrigerator until needed for your shortcakes. If you have any leftover compote, you can eat it with yogurt and granola, or spoon it over oatmeal.
Wait to make the whipped cream until you're ready to serve the shortcakes. Store any leftover whipped cream in an airtight container in the refrigerator for up to three days.
You can bake the cupcakes in advance if needed, keeping them frozen in an airtight container for up to 3-6 months. If they dry out in the freezer, thaw the cupcakes and brush them with milk before serving.
Instead of the cherries and blueberries, you can use just one fruit, or any combination of cherries, blueberries, blackberries, or raspberries to make the compote.
Using both frozen and fresh fruit is important for the texture of the compote. By cooking the frozen fruit with sugar first, it will break down into a sweet jammy sauce that will coat the whole, fresh berries.
Keyword Berry, Blueberry, Cherry, Cupcakes, High Altitude, Shortcake