• Set air fryer to 200°C. • Cut sweet potato into fries. • In a medium bowl, combine sweet potato, a drizzle of olive oil and a pinch of salt and pepper. • Place sweet potato into an air fryer basket and cook for 15 minutes. Shake the basket, then cook until golden, a further 10-15 minutes. • Divide fries between serving plates. TIP: No air fryer? Preheat oven to 240°C/220°C fan-forced. Place fries on a lined oven tray. Drizzle with olive oil, season with salt and toss to coat. Bake until tender, 20-25 minutes. TIP: Cook in batches if necessary!

• Meanwhile, thinly slice brown onion. • Thinly slice tomato. Little cooks: Don your goggles and have a go at peeling off the onion's outer layer!

• In a large frying pan, heat a drizzle of olive oil over medium-high heat. Cook onion, stirring regularly, until softened, 5-6 minutes. • Reduce heat to medium. Add the balsamic vinegar, water and brown sugar, then mix well. Cook until dark and sticky, 3-5 minutes. • Transfer to a small bowl.

• When fries are done, place bake-at-home ciabatta in the air fryer basket and cook until heated through, 2-3 minutes. TIP: No air fryer? Place ciabatta directly on a wire rack in the oven. Bake until heated through, 5 minutes.

• While ciabatta is heating, in a medium bowl, combine Italian herbs, a good pinch of salt and pepper and a drizzle of olive oil. Add beef strips, tossing to coat. • Wipe out frying pan, then return to high heat with a drizzle of olive oil. When oil is hot, cook beef strips in batches (to keep them tender!), tossing, until browned and cooked through, 1-2 minutes.

• Slice each ciabatta in half, then spread with creamy pesto dressing. • Top with beef, caramelised onion, tomato slices and baby spinach leaves. Top with other ciabatta half. • Serve with sweet potato fries. Enjoy! Little cooks: Take the lead and help build the subs!