Purple Yam Ube Sweet Rice Cake

Name: Purple Yam Ube Sweet Rice Cake
Ingredients: 2 cups sweet rice flour; 1/2 cup unbromated, unbleached all-purpose flour, sifted; 1/2 cup organic oat flour, sifted; 1 cup firmly packed frozen grated purple yam, thawed and completely drained (see notes); 2 teaspoons baking powder; 5 organic eggs; 2 cups of sugar; 1 can (12 oz.) low-fat Evaporated milk; 1 can light coconut milk (available at Wegman’s); 1 & 3/4 stick melted unsalted butter; 3/4 tablespoon McCormick Ube (purple yam) extract (see notes)toasted coconut flakes and whipped cream for topping and garnish; salted caramel (optional)