Ingredients
Béchamel sauce
To assemble
Method
1.Preheat oven to 180°C. Grease a deep 30cm baking dish with butter. Line an oven tray with baking paper.
2.Cook the pasta in a large saucepan of salted water for 10-12 minutes or according to the packet instructions. Drain into a colander.
3.In a small bowl, add lemon juice and olive oil. Core and slice the apples into thick wedges. Toss a handful at a time in the juice and oil then place on the oven tray. Cut onion into thin wedges and toss in the remaining juice and oil then add to the tray. Bake for 10-15 minutes or until just cooked.
4.For the béchamel sauce, add butter to a small saucepan over medium heat and melt. Stir in the flour and allow it to bubble for 2-3 minutes. Add salt, pepper, nutmeg, bayleaf and ½ cup of the milk then stir until smooth.
5.Gradually add the remaining milk in ½ cup amounts, stirring after each addition until smooth. Turn heat to low, add grated cheese and simmer for 8-10 minutes, stirring occasionally. Check sauce for seasoning and adjust if necessary. Remove bayleaf.
6.Heat a large frying pan on medium heat, add a drizzle of oil then the bacon and sauté until just cooked and lightly coloured.
7.Drizzle a little béchamel into the base of the dish, add all the pasta tubes then scatter with most of the apple, onion and bacon. Top with remaining béchamel, apple, onion and bacon plus the gruyere cheese.
8.Bake for 25-30 minutes or until golden on top. Serve with a winter salad.
