Measure flour, sugar, baking powder, and salt into sifter. Sift into bowl. Make a well; add oil, egg yolks, water, vanilla, and lemon flavoring to the well in the order that is given. Set aside. Don't beat. In a large mixing bowl, beat egg whites and cream of tartar until very stiff.
I have tried a couple of Chiffon cake recipes and found this one easiest and the cake is great. If you have a stand mixer try to beat egg whites with it while you whisk your egg yolks and flour in another bowl. You do not need to beat the mixture (of yolks oil...) as called for in the recipe.
This from scratch lemon cake recipe is made with a combination of almond flour and coconut flour to give it the best fluffy texture. Homemade lemon cake recipes are typically made with a combination of butter, all purpose flour, eggs and granulated sugar.
A low carb diet focuses on carbohydrates that may be from protein as well as fats. In the keto diet, carbohydrates are more restricted as is protein too. Since this is a low carbohydrate recipe you may be asking is lemon juice necessary for cheesecake. To be honest, if you want the true taste of lemon, the answer is yes.