Ingredients:* 250 g all-purpose flour* 150 g cold butter* 100 g sugar* 1 egg* 1 teaspoon baking powder* 1 teaspoon vanilla extract* 200 g raspberry jam* 2 tablespoons powdered sugarInstructions:* Preheat the oven to 180°C (350°F).* Mix the flour, sugar, and baking powder in a bowl.* Add the cold butter and rub it into the flour until the mixture becomes crumbly.* Add the egg and vanilla extract, then mix until a soft dough forms.* Press two-thirds of the dough into a greased baking pan.* Spread the raspberry jam evenly over the dough.* Crumble the remaining dough over the jam to create a crumbly topping.* Bake for 30–35 minutes, until golden brown.* Allow the cake to cool, then cut it into squares and sprinkle with powdered sugar.