Prep all vegetables: Scrub topinambur thoroughly under running water and cut into 2 cm cubes (do not peel). Halve leeks lengthwise, rinse between layers, then slice thinly. Peel shallots and cut into paper-thin rings. Cut smoked tofu into 1.5 cm cubes. Trim broccoli into small, even florets. Press or mince garlic. Zest and juice the lemon. Chop parsley.
Make cashew cream: Drain soaked cashews. Blend with 100 ml water in the Kenwood glass blender (or with immersion blender in a tall cup) until completely smooth and creamy. Set aside.
Fry crispy shallots: Heat 2 tbsp rapeseed oil in a braising pan over medium-low heat. Add sliced shallots and a pinch of salt. Cook 6–8 minutes, stirring frequently, until golden brown and crisp. Remove with a slotted spoon and drain on paper towel or in a sieve. Set aside.
Roast broccoli: Preheat oven to 200°C (convection). Toss broccoli florets with 1 tsp oil, lemon zest, and a pinch of salt. Spread on a baking sheet. Roast 15–18 minutes until edges are charred and stems tender.
Cook purée base: In a large pot, heat 1 tbsp olive oil over medium heat. Add sliced leeks and sauté 4–5 minutes until soft but not browned. Add garlic and cook 30 seconds until fragrant. Add cubed topinambur and pour in 300 ml prepared vegetable broth. Bring to a gentle simmer, cover, and cook 15–20 minutes until topinambur is fork-tender.
Finish purée: Remove pot from heat. Stir in cashew cream, lemon juice, and ½ tsp smoked paprika. Blend with immersion blender until completely smooth. Season generously with salt and pepper to taste. Keep warm on low heat.
Crisp the tofu: In a small bowl, toss tofu cubes with cornstarch, ¼ tsp smoked paprika, and a pinch of salt. Heat 1 tbsp rapeseed oil in the braising pan over medium-high. Add tofu in a single layer and sear 2–3 minutes per side until golden and crisp.
Toast bread: Lightly toast sourdough or whole wheat slices in oven or on a dry pan until crisp.
Assemble bowls: Divide warm purée among three bowls. Top with crispy tofu and charred broccoli. Scatter crispy shallots over everything. Garnish with chopped parsley. Serve immediately with a slice of toasted bread and optional lemon wedge.