Preheat oven to 375 F. In a bowl, combine all cake ingredients & beat until smooth. Divide mixture over kumquats in custard cups. Place cups on a baking sheet & bake for 15 minutes or until cakes have risen & are firm to the touch in center. Remove from oven & allow them to cool in cups for a few minutes. Carefully turn them out on to serving plates, garnish with whole kumquats & drizzle with warm syrup.