Russian Blini (Buckwheat Pancakes)

📝 Ingredients

• 1/2 cup buckwheat flour
• 2/3 cup all-purpose flour
• 1/2 teaspoon salt
• 1 teaspoon yeast (instant or rapid-rise)
• 1 cup milk (warm)
• 2 tablespoons butter (melted)
• 1 large egg (room temperature, separated)

👨‍🍳 Instructions