Walnut Cake

Name: Walnut Cake
Prep time: 45 min
Cook time: 35 min
Total time: 1 h 20 min
Cuisine: Latin American
Ingredients: 2 cups wheat flour; 1/2 cup chopped walnuts; Pinch of salt; 7 egg yolks; 3 cups sugar; 1/2 cup oil; 1 cup boiling water; 7 egg whites, beaten; 3 teaspoons baking powder; 2 cans condensed milk; 1 tablespoon butter; 3/4 cup walnuts, chopped; 1/2 cup heavy cream; 4 egg whites; 1 cup sugar