In a medium bowl add plain flour & spelt flour and stir to combine.
Add diced butter and using your hands mix with the flour until a coarse, meal like texture is created.
Add poppy seeds and 20g parmesan and combine with flour mixture.
In a small bowl add white wine vinegar & chilled water and stir to mix.
Gradually add the vinegar mix to the flour until it combines into a solid dough like texture. Use only as much of the vinegar mix as required. You will likely not need it all.
Form dough into a ball, cover with plastic wrap and press it into a medium sized disc shape.
Place in refrigerator for 1-2 hours to firm.
Preheat a fan forced oven to 200°C (390°F).
Line a baking tray with baking paper
Remove dough from refrigerator, dust a flat working surface and roll dough into a large disc shape approx 25-30cm in width and slide onto baking tray.
Filling
Sprinkle breadcrumbs and 20g parmesan over the dough base. Leave a border of approx 2-3 cm around the circumference of the dough base.
Place the sliced tomatoes over the top of the breadcrumbs.
Sprinkle oregano leaves over the tomato
Season with salt and pepper.
Fold the pastry edges inward and crimp with fingers if required to hold the pastry in place.
Brush the pastry edge with milk.
Place baking tray in oven and bake for 10 minutes.
Reduce oven temperature to 180°C (350°F) and bake for a further 20 minutes until pastry is golden brown.
Remove from oven and sprinkle with toasted pine nuts, crumbled paneer and basil leaves.