MIX gelatine, instant coffee and cinnamon in medium saucepan. Stir in milk; let stand 1 min. Cook on medium heat 5 min. or until gelatine is completely dissolved, stirring constantly. Add yogurt, sugar, corn syrup and vanilla; mix well.
POUR into 9-inch square pan. Freeze 2 hours or until almost solid. Spoon mixture into large bowl of electric mixer; beat on low speed 30 sec. Increase speed to high; beat 2 min. Gently stir in whipped topping.
PLACE 1 wafer on bottom of each of 12 medium muffin cups; cover evenly with whipped topping mixture. Freeze 2 hours or until firm. To serve, run small knife around edges of cups; remove from pan. Let stand at room temperature 15 min. to soften slightly before serving. Garnish as desired.