Swiss Tart with Caramelized Onion

Ingredients

• 1 1/4 cups sugar
• 3 1/4 tablespoons sugar
• 9/16 cup butter
• 1 egg yolk
• 1/4 cup cold water
• 1/8 tablespoon salt
• 2 tablespoons oil
• 2 onions large, sliced
• 1/2 cup buttermilk or milk soured with vinegar
• 2 eggs
• 1/2 cup mozzarella grated
• 1 pinch nutmeg
• 3 9/16 tablespoons blue cheese crumbled, optional
• salt and ground black pepper

Nutrition

• Calories : 720 calories
• Carbohydrate : 80 grams
• Cholesterol : 245 milligrams
• Fat : 42 grams
• Fiber : 1 grams
• Protein : 11 grams
• SaturatedFat : 21 grams
• Sodium : 680 milligrams
• Sugar : 77 grams