Egg-yolk Sponge Cake

Food.com
3
10
85

Ingredients

1 2/3 cups flour
1 1/2 teaspoons baking powder
1/2 teaspoons salt
8 large egg yolks
1 large eggs
1 1/2 cups sugar
1 tablespoon grated orange
1 tablespoon orange juice
1/2 teaspoons lemon extract
3/4 cups boiling water
Read Directions