my adventures in baking: Zesty Orange Streusel Coffee Cake

pretty coffee cake, just out of the oven

I wanted to make a coffee cake one Saturday morning but didn't have a tried and true recipe...so I adapted a couple of Rose Levy Beranbaum's recipes from Rose's Heavenly Cakes and made my own. Since it's an adaptation, I'll include my recipes below for the streusel filling and for the cake itself. I didn't make the full streusel filling recipe because I only needed it for filling and not to cover the top of a cake, so my measurements are approximate. Use more or less, to your liking (you don't need much more though!).

Streusel Filling ingredients (adapted from Cinnamon Crumb Topping, by Rose Levy Beranbaum)
approx. 70 grams (3/4 cup) walnut halves, finely chopped
2 T melted butter
approx. 50 grams (1/4 cup or so) total of light brown sugar and granulated sugar, use mostly brown sugar
30 grams (1/4 cup) all-purpose flour
1/2 t cinnamon
scant 1/4 t freshly grated nutmeg
1/8 t cardamom
drop of orange oil

Streusel instructions: melt the butter and stir in the sugars, spices, flour, and orange oil. Mix in the flour and the finely chopped walnuts. Set aside.

Zesty Orange Streusel Coffee Cake ingredients (adapted from Lemon Poppy Seed Sour Cream Cake, by Rose Levy Beranbaum)
2 large eggs PLUS 1 large egg yolk, at room temp
200 grams (3/4 c plus 1 T) plain, full fat, strained Greek yogurt (I used Fage), separate out approx. 1/4 cup which you'll use to mix with the eggs. I think you could also use sour cream instead of yogurt
1 3/4 t vanilla
1/2 t orange oil (I used Boyajian)

250 grams (2 c plus 3 T) all purpose flour
250 grams (1 1/4 c) granulated sugar
1 1/2 t baking powder
1/2 t baking soda
1/2 salt
zest from 2 oranges
200 grams (14 T) unsalted butter, at room temp

Preheat oven to 350 and put the oven rack on the bottom third of the oven. Spray your 10 c bundt cake pan with a baking spray with flour (I love the Spectrum Organics brand). I use this Nordic Ware 'Heritage' pan. It is wonderful. It's heavy and the sharp edges make the most beautiful cakes...no frosting or other embellishment is needed.

Cake instructions (also adapted from Rose's sour cream cakes method - no alternating of mixing in the milk and flour - it's the best!):

In a small/medium bowl, mix together: eggs, egg yolk, 1/4 of the yogurt, vanilla, orange oil, set aside.

In the bowl of a stand mixer, use the paddle attachment to combine the dry ingredients: flour, sugar, baking powder, baking soda, salt, orange zest. Add the softened butter and remaining yogurt. Mix on low until combined, scrape down, and then increase speed to med-high for 90 seconds to two minutes.

Add the egg-yogurt mixture in two parts, mixing on low until combined and then on med-high for about 30-40 seconds after each addition. Scrape down the sides of the bowl when adding the eggs.

Spoon about 2/3 of the batter into the bundt pan, then create a 'well' into which you can spoon the filling. Spoon in the streusel filling in, and then gently spoon over the remaining batter. Smooth the batter with a small offset spatula being careful not to mix up the streusel mixture.

Bake for 45-50 minutes (mine was done at 48 minutes), until a toothpick comes out clean. Let cool in the pan, on a rack, for 8 minutes, then turn out onto your serving plate and let cool completely (or...if you're like me, eat while still warm).

The cake came out really well. It had a really light crumb and the filling was a delicious mix of nuts, sugar, and spices. I'll definitely make this one again. Enjoy!