Start by melting the butter in a saucepan over medium heat until it turns golden brown and smells nutty. Stir constantly to avoid burning, and watch for brown specks forming at the bottom. Once done, let it cool slightly before using.
In a large bowl, combine the browned butter with brown sugar and granulated sugar. Whisk until smooth and glossy, then add eggs and vanilla extract. Mix until the texture becomes creamy and well blended.
In a separate bowl, whisk together flour, baking soda, salt, chai spices, and espresso powder. This ensures even distribution of flavors throughout the dough. Gradually add the dry mixture to the wet ingredients.
Gently fold the dry ingredients into the wet mixture until a soft dough forms. Avoid overmixing to keep cookies tender. Stir in chocolate chips evenly for bursts of sweetness in every bite.
Cover the dough and refrigerate for at least 30 minutes. This step helps develop flavor and prevents the cookies from spreading too much while baking. Chilling also improves texture significantly.
Preheat your oven to 180°C (350°F) and line a baking tray with parchment paper. Scoop dough onto the tray, spacing them apart. Bake for 12–15 minutes until edges are golden and centers remain soft.
Allow cookies to cool on the tray for a few minutes before transferring to a rack. They will firm up as they cool while staying chewy inside. Enjoy warm for the best flavor experience.