Blend 1 cup of raspberries and currants with water, then add sugar and beat with a hand whisk.
When the sugar dissolves, add vegetable oil, baking soda dissolved in lemon juice, and salt and mix well again.
Sift the flour and mix with a hand whisk, add the remaining 1/2 cup of raspberries to the batter. Mix well and transfer to a greased baking form (32x21 cm).
Put it in the oven heated to 180°C and bake for 30-35 minutes. Check with a toothpick when it comes out dry, it is ready.Bon Appetit!