Zapiekanka — Toasted Baguette with Button Mushrooms & Cheese

Ingredients

• 1 baguette, halved lengthwise and crosswise
• 10 oz Button Mushrooms, sliced
• 1 small onion, diced
• 2 tbsp butter
• 1½ cups shredded gouda or mozzarella
• 3 tbsp ketchup
• 2 scallions, sliced
• Salt and black pepper

Method

1. Heat the oven to 425°F (220°C). Sauté the Button Mushrooms and onion in butter over medium-high until browned and the pan is dry again, 6–8 minutes; season well.
2. Pull a little bread from the cut faces of the baguette to make shallow boats.
3. Pile the Button Mushrooms mixture onto the bread and blanket with cheese all the way to the ends — bare corners burn.
4. Bake 8–10 minutes until the cheese bubbles and the crust crackles.
5. Zigzag with ketchup, scatter scallions, and eat it the traditional way: too hot, standing outside.