INGREDIENTS
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“
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4 large onions, thinly sliced
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2 tablespoons butter
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1/4 cup cognac or brandy (or substitute with dry white wine)
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1 teaspoon tomato paste
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6 cups chicken or vegetable stock
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6 leaves kale, thick ribs trimmed and torn or sliced into slivers
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salt and pepper to taste
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4 pieces stale, crusty French bread
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about 6 oz Gruyere or Swiss cheese, grated
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pinch of herbs de Provence