Good Food Matters » Blog Archive » Caramelized Onion-Chanterelle Tart

Ingredients

• 1 c. All Purpose Flour, sifted
• 1 t. Salt
• 6 T. Butter, chilled, cut into pieces
• 3-4 T. Ice Water
• later: 1 T. coarse grain mustard
• 1 Tablespoon Butter
• 4 medium Onions, sliced lengthwise
• a few sprigs of fresh Thyme leaves
• 2 cups Half-and-Half
• 3 large Eggs
• 1 cup grated Gruyere cheese
• 4 oz. Chanterelle mushrooms