Here's a simple one-bowl recipe for Lotus Cookie Chocolate Muffins. Whisk eggs and granulated sugar until stiff peaks form, then add milk and rice oil and emulsify. Sift in cake flour, cocoa powder, and baking powder, and mix briefly with a rubber spatula. Pour the batter into muffin tins using a piping bag. Top generously with crushed Lotus cookies and bake at 170°C for 15 minutes. The oil-based batter has a moist texture and pairs perfectly with the fragrant Lotus cookies. These easy and delicious muffins are perfect for Valentine's Day gifts or for enjoying at home. Using a perforated muffin tin from Daiso makes it easy to remove the muffins cleanly, so it's recommended even for beginners.