Use room temperature butter and eggs for easier mixing and better texture. Don’t overmix the batter to keep your cake tender and fluffy. For a deeper cinnamon flavor, consider adding a pinch of nutmeg or cardamom to the cinnamon swirl. Swirling gently is key to keep visible swirls. Let the cake cool slightly before adding the glaze so it doesn’t melt completely and become too runny. You can customize by adding nuts, dried fruits, or using alternative glazes and spices.