Preheat the oven to 180°C and prepare a muffin tin with liners to ensure even baking and easy removal.
Whisk dry ingredients together thoroughly to distribute leavening and spices evenly.
Mix wet ingredients until smooth to create a consistent base that blends easily.
Combine wet and dry mixtures gently, avoiding overmixing to maintain a soft texture.
Fold in optional add-ins and portion batter evenly into muffin cups for uniform baking.
Bake until a toothpick comes out clean, ensuring muffins are cooked through without drying.
Cool briefly in the pan, then transfer to a rack to prevent sogginess and set structure properly.