Yukon Gold, Ham, and Gruyère Gallet | Idaho Potato Commission

Ingredients

• 10 ounces of ready made pastry dough, or freshly made short crust pastry
• 1 tablespoon of olive oil
• 1 tablespoon of unsalted butter
• 1 large red onion, thinly sliced
• 1 cup of thinly sliced ham
• ½ teaspoon fresh thyme
• ¼ teaspoon plus 1 pinch kosher salt
• black pepper to taste
• 4 ounces Gruyère cheese, coarsely grated
• 1 pound Yukon Gold Idaho® potatoes, thinly sliced
• 1 egg, lightly beaten to make an egg wash