3: Pour 100 ml beer into a small saucepan on low heat. Bring to the boil.
4: Add the Maroilles, tune down the heat and leave to melt gently, stirring form time to time.
5: This will make a velvety and very tasty sauce. Check the seasoning (you shouldn't need to add any salt, just pepper), then set aside.
6: Fill the cooked tart cases with 200 g cooked mussels.
7: Cover generously with the sauce.
8: Put back in the oven for 3 minutes, just to heat through.
9: Serve without delay.
Remarks
Try to choose a beer in keeping with the Ch'ti character, such as a strong, brown or amber ale (from northern France if you can find it). This recipe can be varied easily by using different shellfish: clams, cockles, etc. (or a mix). Translator's note: Ch'ti is a dialect found around Lille in the north-east of France. The area was formerly a centre of mining and heavy industry, like the north-east of England, and with a similar culture. The accent is often seen as impenetrable, much like Geordie.