01 - Preheat oven to 350°F (175°C). Lightly grease a standard 8x4-inch loaf pan and line with parchment paper for easy removal.
02 - In a large mixing bowl, whisk together all-purpose flour, baking powder, baking soda, sea salt, and freshly ground black pepper until evenly blended.
03 - In a separate bowl, whisk eggs with whole milk and melted unsalted butter until smooth and fully incorporated.
04 - Gradually add wet mixture to dry ingredients, stirring gently until just combined. Avoid overmixing to maintain a tender crumb.
05 - Gently fold in chopped snap peas, grated sharp cheddar, and fresh chives (if using) until ingredients are evenly distributed throughout the batter.
06 - Pour the mixture into the prepared loaf pan and smooth the top with a spatula.
07 - Bake for 35 to 40 minutes, or until the loaf is golden brown and a toothpick inserted into the center comes out clean.
08 - Allow loaf to cool in pan for 10 minutes before transferring to a wire rack. Let cool completely before slicing.