|Heat oven to 325Â°F. Grease and flour an 8" round cake pan. Stir hot water into Chai Latte until blended. Measure Â½ cup for cake and set aside 2 tbl for glaze.
Mix flour, baking powder, cinnamon, cloves, ginger and salt. Set aside. Beat sugar and butter in large bowl with electric mixer on medium speed, scraping bowl occasionally, until fluffy. Beat in eggs and vanilla until smooth and blended. Gradually beat in flour mixture alternately with Â½ cup Chai Latte until smooth. Pour into pan.
Bake for 25-30 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes; remove from pan to wire rack. Cool completely, about 1 hour. Spread Chai glaze over top of cake, allowing some to drizzle down side. Sprinkle with additional cinnamon.
Melt butter in 1-quart saucepan over medium heat. Stir in remaining ingredients until smooth. Drizzle glaze on cake. If desired, grate cinnamon on top as garnish.