Ancient Lunigiana crêpe-like pasta boiled and dressed in vibrant basil pesto is one of Italy's oldest foods. A vegetarian mediterranean dish that's fresh, healthy, and perfect for the whole family.
In a bowl, whisk together the all-purpose flour and water until you have a smooth, pourable batter (like for crêpes). Add 0.5 tsp salt to season.
Heat a large nonstick skillet over medium heat until hot, then lightly oil it. Pour a ladle of batter to form a thin pancake about 7 inches wide.
Cook for 2–3 minutes until the surface sets and small bubbles appear, then flip and cook 1–2 minutes more. Repeat with remaining batter, layering cooked testaroli on a board.
Once cooled, cut testaroli into diamond or square pieces (about 2-inch) using a knife or pastry cutter.
Bring a pot of salted water to a gentle boil. Slip in the testaroli pieces and simmer for 1–2 minutes until they float. Drain well.
Meanwhile, make pesto: In a food processor, combine basil leaves, garlic, pine nuts, and remaining 0.5 tsp salt. Pulse until coarsely chopped, then add Parmesan and olive oil. Blend until a bright green sauce forms.
Transfer drained testaroli to a large bowl and gently toss with the fresh pesto, coating all pieces evenly.
Serve immediately, finishing with extra Parmesan or olive oil if desired.