Brown the Butter: In a saucepan, melt butter over medium heat. Keep stirring until it turns golden brown and smells nutty. Once browned, remove from heat and let it cool slightly.
Mix the Wet Ingredients: In a large mixing bowl, whisk together the browned butter, brown sugar, maple syrup, and a splash of vanilla extract until well combined.
Combine Dry Ingredients: In another bowl, mix all-purpose flour, baking powder, salt, and ground cinnamon. Gradually add this mixture to the wet ingredients, stirring until just combined.
Chill the Dough: Cover the dough and refrigerate for at least 30 minutes to firm it up, which helps in shaping the cookies.
Preheat Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
Shape the Cookies: Using a cookie scoop, scoop out the dough and roll it into balls. Then, roll each ball in a mixture of sugar and cinnamon before placing them on the baking sheet.
Bake: Bake in the preheated oven for around 10-12 minutes or until the edges are lightly golden and the centers look set.
Cool: Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.