Barley Risotto with Marinated Feta

Slightly modified from Jerusalem: A Cookbook by Yotam Ottolenghi and Sami Tamimi.
Ingredients:
1 cup pearl barley, rinsed and drained
2 Tbsp unsalted butter
5 Tbsp olive oil
2 small celery stalks, diced
2 small shallots, diced
4 cloves of garlic, minced
4 sprigs of thyme
1/2 tsp smoked paprika
1 bay leaf
4 strips of lemon peel
1/4 tsp chile flakes
1 14 oz can of diced tomatoes
Scant 3 cups vegetable stock
1 6 oz can tomato paste
2 tsp caraway seeds
8 oz feta
1 Tbsp fresh oregano leaves
Salt and pepper

Melt the butter and 2 Tbsp. oil in a very large frying pan or a soup pot. Cook celery, shallots, and garlic over gentle heat for 5 mins. Add barley, thyme, paprika, bay leaf, lemon, chile flakes, tomatoes, stock, tomato paste, and salt. Stir. Bring to a boil then turn down the heat as low as you can while still getting a simmer. Stir frequently for 45 mins to an hour.
Toast the caraway seeds in a dry pan and lightly crush before adding them to the cheese. Use this to top the risotto along with remaining oil and fresh oregano leaves.
Yield: 4 servings