The basil took a while to get started this year but we’re definitely in the swing of it now. Today I had to trim my plants because they had gone mental, so it was time to make some pesto for storing into winter.
Pesto stores for a little while in the fridge if you cover it in olive oil, but this isn’t going to get you through to next summer. The jars you buy in the supermarket are pressure-preserved, so the pesto has had the life cooked out of it before you even open the jar. It isn’t suitable for water-bath bottling because it isn’t a high-acid food.
So freezing it is!
There is much debate over whether pesto should be frozen with or without the parmesan cheese, or even whether it should be frozen at all. Undoubtably, pesto that you have made fresh before serving is going to be superior to anything defrosted, but if the choice is between home-made and frozen, store-bought or no pesto at all, I know what I’ll be choosing.
As I’m constantly nattering on about, Little D has a milk allergy so this solved the cheese debate for me. I made the pesto without the parmesan, and I’ll add it upon defrosting. I can make his portion with soy-based parmesan substitute, and it also gives me the flexibility to use it in other dishes, like a coconut-milk based pesto ‘curry’ that the kids really enjoy.
My basil offcuts amounted to 8 firmly packed cups of washed, trimmed basil leaves. I started with Linda’s recipe, but found that I didn’t have quite enough pine nuts, so I just cut that back. It seemed to work. I omitted the parmesan cheese:
- 260 grams of lightly toasted pine nuts
- a cup, packed of basil
- 8 cloves of garlic
- salt to taste
- Olive oil to blend
I found that I had to toast the pine nuts in batches because 260 grams of organic pine nuts are really expensive. I know it’s easy to burn pine nuts when you are toasting them, and I didn’t want to send $30 of pine nuts literally up in smoke!
All the ingredients went into the blender (I really need a food processor!) until smooth and combined.
I packed one jar with the pesto and covered with a layer of olive oil. I put that in the fridge for use over the next 2 weeks. The remainder I froze in ice cube trays covered in plastic wrap. Once frozen, I’ll pop them out into a zip lock bag and vacuum seal. It’s really easy to defrost 1 or 2 cubes at a time and add the freshly-grated parmesan cheese.
My 8 cups of leaves made 1 (sacla-sized 190gram jar) of pesto for the fridge and 2 1/2 ice cube trays for the freezer. It will stretch further than normal because it gets bulked up with the cheese.
I may have to make another batch in the autumn, but I think this will get us a good way through the year.