Wrap the tofu in a clean towel and set something heavy (like a cast-iron skillet) on top to press out liquid for 10 to 15 minutes.
Preheat oven to 400 degrees.
Roughly chop the tofu and add to a food processor along with sea salt, black pepper, chili flakes, fennel seeds, smoked paprika, garlic powder, sugar and liquid smoke. Pulse to combine, scraping down the sides as needed.
Transfer the mixture to a lined baking tray. Using slightly damp hands, spread the mixture into an even layer about 1/4 inch thick. Gently brush with oil.
Bake for 25 minutes, or until golden brown and slightly dried out. Use a small or medium circular cookie cutter to cut out “pepperonis”.
Assemble pizzas by rolling out the pizza dough and adding some pizza sauce. Top with the vegan mozzarella then sprinkle with the pepperonis, jalapeños and a few slices of red onion. Bake for 10 to 15 minutes, until the pizza is cooked.