Ham and Cheese Croissants: Easy Baked Sandwiches - Recipes by Clare

Ingredients

• 1/3 cup unsalted butter, room temperature.
• 2 tablespoons Dijon mustard.
• 2 green onions, thinly sliced.
• 1 tablespoon honey.
• 1/2 teaspoon sea salt.
• 1/4 teaspoon black pepper.
• 12 mini croissants, halved.
• 1 pound sliced smoked deli ham.
• 12 slices Swiss cheese.
• 1 large egg white.
• 2 teaspoons poppy seeds.