Kasespatzle

Ingredients

• 2 tablespoons butter
• 1/2 sweet onion, chopped
• a few tablespoons water
• 3 large eggs, beaten
• 1/4 cup plus 3 tablespoons heavy cream, divided
• 1 1/2 cups flour
• 1/2 teaspoon sea salt
• 1/4 teaspoon freshly ground black pepper
• 8 ounces gruyère, shredded