Prepare: Preheat the oven to 200 °C (400 °F / gas mark 6). Line a baking tin with greaseproof paper. Remove the ends and grate the parsnip. Remove the ends and skin the garlic. Take 8 of the cherry tomatoes and cut in half. Remove the leaves from the basil and discard the stems. Slice the halloumi into small slices.
It's all about the base: Place the oats. nuts, salt and pepper into the container of a 'Retro Super Blend', hand blender or bullet-type blender and whiz for 10 seconds to form a 'flour'. Place the 'flour' into a mixing bowl along with the grated parsnip. Mix with (clear) hands until the mixture turns into a dough. Divide the dough into four and flatten each one with your hands, then roll each one into a roundish shape using a rolling pin. Slide under each pizza base with a wide knife and transfer to a baking tray.
Cook: Place the baking tray in the oven and cook for 15 minutes.
Make the Sauce: Place the garlic, the whole cherry tomatoes, half the basil, the sun-dried tomatoes, vinegar, salt and pepper into the hand blender container, 'Retro Super Blend', or bullet-style blender and blend for 10 seconds.
Create: Spoon the sauce onto the cooked bases and spread evenly leaving a small gap around the edge. Randomly add the halloumi, the cut cherry tomatoes and pine nuts.
Cook: Pop back in the oven for 10 minutes
Serve: Remove from the oven and scatter with the remaining fresh basil