1-Getting started: Getting started with this mixed berry cake is all about keeping things straightforward and fun. Begin by preheating your oven to 350°F (175°C) and greasing an 8-inch square baking dish with some melted butter. This sets the stage for a cake that’s easy to make yet full of flavor.

2-Mixing dry ingredients: In one bowl, whisk together the flour, baking powder, and salt, then set it aside for later. In a larger mixing bowl, beat the melted butter with 3/4 cup sugar until it’s well mixed. Add the egg, milk, and vanilla extract, stirring everything until it combines smoothly.

3-Folding in berries and baking: Next, gently fold in half of the mixed berries into the batter to distribute them evenly. Pour the mixture into your prepared baking dish, then arrange the remaining berries on top in a single layer. Sprinkle the reserved 1/2 tablespoon of sugar over the berries for a nice finish, and bake for about 40 minutes. You’ll know it’s ready when a toothpick inserted in the center comes out clean, giving you a warm, inviting treat to serve right away, perhaps with a scoop of ice cream.