Blini (Russian Pancakes)

Ingredients (10)

• + 4 ¼ cups milk add to pantry
• + 5 eggs add to pantry
• + ⅓ teaspoon salt add to pantry
• ✓ 2 tablespoons white sugar
• + ½ teaspoon baking soda add to pantry
• + ⅛ teaspoon citric acid powder add to pantry
• ✓ 4 cups all-purpose flour
• + 3 tablespoons vegetable oil add to pantry
• ✓ 1 cup boiling water
• + ⅔ cup butter, divided add to pantry