Quick carb-free crab ‘courgetti’

This is a take on one of my favourite pasta dishes. It’s a great way to cut out carbohydrates if you're on a health kick, and it really stands out as a dish in its own right.It’s so quick to make, as long as you have a spiralizer. If not, you’ll have to slice the courgettes very finely by hand. I have a small hand-held spiralizer that only cost a few pounds and I highly recommend it.Use good olive oil, juicy tomatoes and adjust the chilli to your taste. Don’t overdo it though, this is a delicate dish. It also works very well with prawns if you prefer.Serves: 4 Preparation time: 5 minutes Cooking time: 5 minutesIngredients2 tins of crab1 large courgette½ a clove of garlicA large handful of cherry tomatoesOlive oilA pinch of chilli flakes2 tbsp fresh chives, finely slicedSalt to seasonMethod

1. Prepare the courgette and set aside for a minute.
2. Gently heat the olive oil and add the garlic, then cook for a minute.
3. Add the courgette, season and toss in the pan for a minute or two, until it starts to soften.
4. Add the crab, tomatoes and chilli flakes and cook for a further minute to warm through.
5. Check the seasoning and stir the chives through just before serving with a salad.

Infused oils: getting more flavour into your meals

Here’s a quick and easy way to add a little more flavour to your cooking. Depending on what you’re making, using infused oils to cook with can make the difference between a good dish and a great one.I like to use this garlic, rosemary, chilli and tomato vine oil to make tomato sauces for pasta, such as arrabiata or beef ragú.IngredientsThe vine stems from four packs of tomatoes1 sprig of rosemary5/6 cloves of garlic2 chillies (serrano are good for this)400ml olive oil100ml rapeseed oilA splash of cider vinegarMethod

1. Gently heat the oil and add all the ingredients to the pan.
2. Cook on a medium heat for five minutes, until things start to sizzle and change colour.
3. Turn the heat off and leave to cool and infuse for 20 minutes.
4. Add the vinegar and store in sterilised airtight glass jars or bottles.

Other oilsOils are good to experiment with; here are some other ideas for oils that can add in-depth flavour to your cooking:Curry oil: a mix of cumin, coriander and cardamom seeds with peppercorns, cloves, garlic and ginger powder in a 50/50 mix of olive oil and rapeseed oil.Chilli oil: add chilli flakes, a selection of fresh chillies, some garlic and a dash of vinegar.Lobster oil: roast lobster shells in a little oil, then smash them up and add more oil before storing in a jar.Lemon oil: this one is great for South East Asian cooking. Blend lemon grass, lemon zest and lemon juice with some kaffir lime leaves and, if possible, verbena in a 50/50 mix of olive oil and rapeseed oil.

Sea urchin spaghetti with lemon and olive oil

One of the greatest meals I’ve ever had was a sea urchin pasta, eaten overlooking a beach in Paxos. We were at a cookery demonstration by Spiros, owner of Bar Taxidi in Loggos (surely the bar with the best view in the world?). Earlier that morning we had watched a boy diving into the beautiful clear sea by the bar, eventually emerging with a bucket of urchins. Spiros and an Italian-Greek friend of his then prepared this simple, yet absolutely amazing dish using the roe.Sea urchins aren’t that easy to come by, so when I saw some this week in Moxon's, I snapped them up. A good fishmonger should be able to order them in for you though, depending on the time of year. Make sure you use the best quality spaghetti you can get, as this dish is all about simplicity and quality.Serves:                 4Cooking time:   10 minsIngredients4 sea urchins (these keep in the fridge for a couple of days, wrapped in damp paper)Juice of half a lemonOlive oilA handful of chopped parsley400g spaghetti1 clove of garlicSalt to seasonMethod

1. Bring a large pot of salted water to the boil for the spaghetti.
2. Prepare the sea urchins by cutting in through the hole at the bottom and around the ‘equator’. Carefully remove the pink roe with a teaspoon and rinse in cold water.
3. Put the garlic, lemon juice and roe in a blender, leaving some roe for the garnish.
4. On a slow blend, pour in the olive oil until you get a sauce the consistency of double cream. Taste and adjust the seasoning.
5. When the spaghetti is cooked, drain it and pour in the sauce, leave it to stand for a moment or two, then toss through the parsley. Serve and garnish with the remaining roe.

How to food style it

1. I had fun with the urchin shells here. I cleaned and boiled them and scraped the spines off. These gave me little ready-made bowls for them, but if you are serving them as a main course, you’ll either need a lot of shells, or just use a plate.
2. This is a delicate dish, so it’s nice to really carefully wind the spaghetti onto the plate. A few drops of lemon oil around the edge work well, giving it vibrancy and contrast.