Chai Spiced Macarons

Name: Chai Spiced Macarons
Prep time: 1 h
Cook time: 15 min
Total time: 1 h 15 min
Cuisine: French
Ingredients: 2 teaspoons ground cinnamon; 1 teaspoon ground ginger; 1 teaspoon ground cardamom; 1/2 teaspoon ground nutmeg; 1/2 teaspoon ground cloves; 1/2 teaspoon ground allspice; 100 grams egg whites (room temperature ); 1/4 teaspoon cream of tartar; 60 grams granulated sugar; 110 grams almond flour (sifted); 200 grams powdered sugar (sifted); 1 teaspoon chai spice; 1-2 drops brown gel food coloring (optional); 1/2 cup brown butter (room temperature ); 1 1/2 cups powdered sugar; 2 teaspoons chai spice; 1/2 teaspoon vanilla extract; 1/4 teaspoon salt; 2 teaspoons milk; 28 grams white chocolate (melted); 1/4 teaspoon chai spice (optional)