Onion Jam

Yesterday a new cookbook arrived in the mail called Good to the Grain by Kim Boyce. It is devoted to baking with whole grain flours including whole wheat, rye, and oats, but also teff, amaranth, quinoa, buckwheat, and spelt. The book has been getting rave reviews so I couldn't resist.

Oddly enough, the very last chapter is devoted not to grains but to cooking fruits, mostly compotes and jams for short term use. The item that really jumped out at me was onion jam, so that's what I made first. It is very simple, and very good. It just takes a bit of time.

My one caveat with this recipe is the amount of salt. Kim calls for 1 teaspoon of kosher (that is, coarse) salt. I used coarse sea salt (Baleine) and found it too salty. If you use regular salt, I suggest using just a quarter of a teaspoon.

Yield: 1 cup

Ingredients

2 pounds yellow onions
1 tablespoon olive oil
1/4 teaspoon salt or 1/2 teaspoon coarse salt
1/4 - 1/2 teaspoon freshly ground pepper
1 teaspoon red wine vinegar

Method

1. Slice the onions in half length-wise, then in 1/4 inch slices cross-wise.
2. In a Dutch oven or large pot, heat the olive oil over medium high heat until it shimmers, then add the onions, salt, and pepper.
3. Stir the onions to coat them in oil, and cook them for 10-15 minutes until they are just beginning to brown.
4. Cover them, turn the heat to low, and cook for 20 minutes.
5. Uncover them, stir them, and continue cooking for about an hour, stirring occasionally. Towards the end of the cooking time, stir them more frequently to prevent burning. 
6. When all the liquid has evaporated and the onions are jammy and caramelized, take them off the heat and add the vinegar. Cool and keep in the refrigerator. 

According to the recipe, this will keep a coupled of weeks in the fridge or a month in the freezer. I don't think it's going to last that long!