Two Person Raspberry Crumbles

Bahan-bahan (2 porsi)

• 1 1/2 cups of fresh or frozen berries (I have thoughts – see notes!)
• 2 tablespoons sugar (more or less depending on the tartness of your berries)
• 1/2 tablespoon cornstarch
• squeeze of lemon juice
• 4 tablespoons butter, melted
• 1/2 cup rolled oats
• 1/2 cup flour
• 1/4 cup brown sugar
• 1/4 teaspoon baking powder
• pinch of salt