Strawberry Prep. Hull the strawberries (remove the tops) and slice into halves. Put the strawberries into a bowl.
Strawberry Mixture. Squeeze the orange and add the orange juice, together with the caster sugar, to the prepared strawberries.
Sieve raspberries. Place a wire strainer over a bowl and put the raspberries into a wire strainer. Crush and push the raspberries through the strainer using the back of a spoon.
Raspberry purée. Add the icing sugar to the crushed raspberries and whisk in thoroughly.
Whisk cream. Whisk the double cream with a balloon whisk or electric mixer, until it has soft peaks.
Raspberry cream. Gently fold the raspberry purée into the whisked cream, until combined to create a gently pink cream.
Final step. Place the raspberry cream into individual bowls and spoon over the strawberry mixture.