Ingredients:

NOTE: Our family likes our cakes less sweet. So I have reduced the sugar in the dough by half.

Ingredients:

Apples
4 cups tart or slightly sweet Apples peeled and sliced 4-5 apples depending on size.
4 cups boiling Water
1 teasp cinnamon
1 teasp sugar
1/2 teasp vanilla

Dry Ingredients:
1 cup AP Flour -120 grams
1 1/2 teasp Baking Powder
1/4 teaspoon salt
2/3 - 3/4 cup Sugar 100-130 grams

Wet Ingredients:
3 Eggs separated
1/2 cup or 1 stick of Butter melted ( 125 grams) reserve 2 tblsp for the Streusel.
1/2 cup (125 grams) Yogurt or Sour Cream
1 teaspoon Vanilla Extract
Optional 1/2 teasp (grated lemon peel)

Streusel Topping:
1/4 cup Flour
1/4 cup Oatmeal
1/4 cup sugar
1 teaspoon cinnamon
2 Tablsp melted Butter

1/4 cup Slivered Almonds (optional)

Directions:

1. Bring 4 cups of water to a boil.

Peel your apples, and keep them in water if your not going to immediately slice and use them.

2. Pour the boiling water over the apple slices.

3.Cover and let sit for at least 10 minutes. This process will set the cell structure so it doesn't break down as much during cooking and get mushy. Also the cake doesn't take that long to bake so it helps to par cook the apples.
Alternatively you can saute the apples and half cook them.

Pre- Heat the oven to 350 degrees

Gather your dry ingredients:

4. Mix the flour, baking powder, salt, and sugar in a separate bowl.

Gather your wet ingredients:

Egg whites, yogurt or sour cream, egg yolks, melted butter, vanilla.
I have put the yolks in a small blender as I will bend all the wet ingredients except egg whites.

Lemon peel in your apple kuchen is very German. I really like it but it is optional.
Add it if you like. You can also add it to the apples or the Streusel topping.

5. Mix the wet ingredients except the whites well in a food processor or together with the dry ingredients till just well blended. Do not overmix, we don't want a bread texture.

6. White the egg whites to stiff peaks. Fold in the egg whites very gently.

7. Blend the Streusal ingredients together.

8. Pour the batter into a buttered and floured springform pan. You can use a pie pan or square glass baking dish also.

9. Add the cinnamon, sugar, vanilla and the lemon peel if you want. if the apples seem wet like these were you can add a tblsp flour. Place the apples gently on top of the batter. I did a circle but you can place them any way you want. Top with the Streusel, and slivered almonds if you wish.

10. Bake for 30- 45 minutes until the batter is set. The internal temperature should be about 200 degrees.

Let sit for a few minutes and use a knife to go around the edges before taking off the collar of the springform pan.

Serve with whipped cream, but is excellent all by itself.