Ingredients
Method
Preheat and prepare the pan
- Preheat your oven to 350 F (175 C). Lightly grease a 9-inch round or 9x9 square pan and line the bottom with parchment paper for easy removal.
Make the berry filling
- In a medium bowl, toss the berries with granulated sugar, cornstarch, lemon juice, lemon zest, and vanilla extract until evenly coated.
Mix the dry cake ingredients
- In a separate bowl, whisk together 1 1/2 cups flour, baking powder, baking soda, and salt.
Beat the wet ingredients
- In a large bowl, whisk the eggs and sugar until just combined. Add the melted butter, yogurt, and vanilla, whisking until smooth.
Combine wet and dry
- Gently fold the dry mix into the wet mix in two additions, alternating with the milk if needed to achieve a thick but pourable batter.
Assemble the layers
- Spoon half the cake batter into the prepared pan and spread it gently into an even layer.
- Spoon the berry filling over the batter, leaving a small border so the fruit does not touch the pan sides.
- Spoon the remaining batter over the berries.
Make the streusel topping
- Combine 3/4 cup flour, brown sugar, cinnamon, and a pinch of salt in a bowl. Add cold butter cubes and toss or use a pastry cutter until pea-size crumbs form.
Bake
- Place the pan on the middle rack and bake for 40 to 50 minutes. Rotate the pan halfway through for even browning.
Cool and rest
- Remove from oven and cool on a wire rack for at least 30 minutes.
Serve
- Dust with powdered sugar or sprinkle turbinado sugar for extra sparkle. Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream.
Notes
This mixed berry pie cake pairs beautifully with light salads or comforting soups for a full meal; it would be a lovely finale after creamy chicken and rice soup on cool evenings. Store leftovers in an airtight container in the refrigerator for up to 4 days.
