Ingredients

  • 1 pound onions, roughly chopped
  • 1 cup garlic cloves, peeled and roughly chopped
  • 1 tablespoon unsalted butter
  • 1 tablespoon olive oil
  • salt and white pepper, to taste
  • 1 (4 inch) piece of parmgiano-reggiano rind only
  • 1 tablespoon mixed herbs (parsley, thyme, etc)
  • 4 slices stale garlic bread cut into 1-inch cubes
  • 1 quart chicken stock, plus more if necessary
  • 1 pound steamed clams per person (optional)
  • 5 stems of thyme, leaves removed stems discarded
  • additional parmgiano-reggiano for topping
  • very good extra-virgin olive oil for drizzling

Method

  • In a medium-sized saucepan set over medium heat saute onions and garlic in a mixture of butter and olive oil. Add a pinch or two of salt and a bit of white pepper. Do not let the mixture fry. Small gentle bubbles should form around the edge of the pan and are a good sign that the heat is just right. They will become a deep golden caramel color in about 30 minutes. Stir frequently, and watch them as they cook.
  • Add the chicken stock, cheese rind, chopped herbs and the garlic bread cubes. Simmer another 15 to 20 minutes, stirring often. Taste for seasoning. It may need a bit more salt. If it does add a pinch and let it cook another 2 or 3 minutes. Remove what is left of the cheese rind and discard it.
  • Puree the soup with an immersion blender. Adjusting consistency with more stock if necessary.
  • You may make the soup a day ahead as it is often better on the second day. Serve this with steamed clams (optional) on the side and a hefty sprinkling of grated Parmigiano-Reggiano, a drizzle of good olive oil and some chopped thyme leaves.