01 - Preheat oven to 350°F. Grease and line a 9x5-inch loaf pan with parchment paper.
02 - In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, salt, and all chai spices until evenly distributed.
03 - In a separate bowl, whisk together eggs, whole milk, vegetable oil (or melted butter), and vanilla extract until smooth and homogeneous.
04 - Pour wet ingredients into the dry mixture. Stir gently until just combined. Avoid overmixing to maintain a tender crumb.
05 - Pour batter into the prepared loaf pan. Smooth the surface. Sprinkle turbinado sugar over the top, if desired.
06 - Place loaf pan in the oven and bake for 43 to 48 minutes, until a toothpick inserted into the center emerges clean.
07 - Allow loaf to cool in pan for 10 minutes. Transfer to a wire rack and let cool completely before slicing.