Mushroom cannelloni

1.For pasta dough, pulse flour and semolina in a food processor until combined. With motor running, add eggs, then gradually add 20ml iced water and process until mixture just comes together. Remove dough, knead until smooth (5-7 minutes), wrap in plastic wrap and rest at room temperature (1 hour). Divide pasta into four, then, using a pasta machine with rollers at widest setting and working with one piece at a time, feed dough through rollers. Fold dough in half lengthways, then feed through rollers again, continuing until smooth, reducing settings notch by notch until pasta is translucent and 2mm-thick, set aside on a lightly floured tray. Cut pasta into ten 12cm x 15cm pieces. (Remaining pasta can be frozen in an airtight container separated by baking paper or hung and air-dried, then stored in an airtight container.) Cook in a large saucepan of boiling salted water over high heat until al dente (1 minute), drain and refresh, drizzle with a little oil, set aside.

2.Preheat oven to 180C. Press ricotta through a fine sieve into a large bowl, then combine with eggs and 75gm parmesan, season to taste and set aside.

3.Heat extra-virgin olive oil in a large frying pan over medium heat, add garlic and spring onion, sauté until starting to soften (2-3 minutes). Add mushrooms and herbs, sauté until tender (8-10 minutes). Add porcini and soaking liquid, simmer until liquid has reduced (7-10 minutes), season to taste, set aside.

4.For béchamel, heat butter in a saucepan over medium heat until foaming (1-2 minutes), add flour and stir until mixture is light brown in colour (2-3 minutes). Whisk in warm milk, a little at a time, and stir until beginning to bubble (2-3 minutes), remove from heat, add parmesan, season to taste with sea salt, freshly ground black pepper and nutmeg, set aside.

5.Spoon ricotta into a piping bag fitted with a 2cm-plain nozzle, pipe across the middle of each piece of pasta, top with mushrooms and roll to enclose. Arrange cannelloni in a 25cm x 35cm buttered baking dish. Spoon béchamel on top, scatter with remaining parmesan and bake until golden and warmed through (30-40 minutes). Serve with a green salad, if desired.