Oh well done for facing the dalek (and its inhabitants) so bravely quince! I'm glad the little monsters had scarpered and that the contents were so well rotted down - you're all ready for your spring mulch now!!
And HOORAY FOR BOKASHIING!!! 
book - I can't lay any claim to the celeriac, I think it just likes very rich soil and very wet conditions! My Dad is a much better gardener than me, but he can't grow it at all simply because it's so very dry where he is. It's one of the few compensations for the Sheffield rain 
Recipes -
Shove's cheatin' smokin' garlic soup (this is based on one I found online, but has a sneak cheat ingredient)
26 garlic cloves (unpeeled)
2 tablespoons olive oil
1 tablespoon butter
375g sliced onions
1 1/2 teaspoons chopped fresh thyme
18 garlic cloves, peeled (yes, these are a separate lot from the first 26)
700 ml Marigold bouillon (less if you want a really thick soup)
125ml cream
Parmesan cheese (about 2 ounces)
4 lemon wedges
Amazing cheat ingredient: 2 tablespoons of Colgin liquid smoke (you can buy it from the website Souschef)
Preheat oven to 180 C. Place 26 garlic cloves in small glass baking dish. Add 2 tablespoons olive oil and sprinkle with salt and pepper; toss to coat. Cover with foil and bake until garlic is golden brown and tender, about 45 minutes. Cool. Squeeze garlic between fingertips to release cloves. Transfer cloves to small bowl.
Melt butter in heavy large saucepan over medium-high heat. Add onions and thyme and cook until onions are translucent, about 6 minutes. Add roasted garlic and 18 raw garlic cloves and cook 3 minutes. Add stock; cover and simmer until garlic is very tender, about 20 minutes.
Purée soup in blender until really smooth. Return soup to saucepan; add cream and bring to simmer. Season with salt and pepper. Add about a tablespoon or two (more to taste) of liquid smoke right at the end.
Grate some cheese over in the bowl and squeeze some lemon over it. Best served in relatively small amounts, but makes an amazing starter!
Leek and celeriac soup
This is dead easy - just melt a big old bit of butter (do not skip this bit and use oil, it's not the same), add a large chopped onion and fry off at a medium heat for a few minutes. Don't let it brown - shove a lid on if it needs extra moisture. Add 3-4 big leeks and a head of celeriac and fry then sweat for at least 10-15 minutes to get as much flavour out as possible, stirring regularly. Add a decent amount of water to cover plus an appropriate amount of Marigold bouillon (normally 1.5 litres and 4 tsp for me) plus 5 bay leaves and simmer for a short while until the veg is soft. Add a can of butter beans and a dessert spoon of the Colquin smoke at the end of this, remove the bay leaves, then liquidize. I reckon a couple of teaspoons of fresh tarragon would taste smashing.
MERRY CHRISTMAS EVERYONE! I really hope you all have the most wonderful time. 