Chocolate Orange Walnut Streusel (橙朱古力核桃 Streusel)

Orange and Chocolate are always my favourite combo in making dessert. Jacobs Orange Chocolate is my all time favourite chocolate since I was a kid. In Fall season, my dessert theme is always around ingredients of pumpkin or something in orange colour. I already made a pumpkin tiramisu for my Thanksgiving dinner, therefore, I will think of something else in Orange. First thing pop up in my mind is Orange, then Chocolate comes next. And I start looking for a dessert that I can make ahead and serve warm during party. Here I found this recipe and it seems more people choose it more than the pumpkin tiramisu (since some of my friends don't like pumpkin or cinnamon). And I omit the cinnamon in this recipe because not many people like it. And this dessert is consumed in a blink of an eye.

Here is the recipe: (Recipe adapted from aashpazi.com)

Ingredients: (About 45 one bite size serving)

3 Cup All-Purpose Flour 3.5 oz (156g) Unsalted Butter 2.5 oz (70g) Unsalted Butter 1 1/2 Cup Plain Yogurt 3/4 Cup Sugar 1 Cup Brown Sugar 3 Large Eggs 1 Cup Dark Chocolate Chips 1 Cup Chopped Walnuts Orange Zest (1/2 Orange) + (1/2 orange zest saved for garnishing) 1/4 Cup Orange Juice 1 1/2 Tsp Baking Soda 1 1/2 Tsp Baking Powder 1 Tbsp Cinnamon Powder (I omit this as some of my friends don't like cinnamon) 1 1/2 Tsp Vanilla Extract
Few drops of Orange food colour (Optional)

Directions:

BATTER:

1- Whisk 5.5 oz (156g) unsalted butter, 3/4 cup sugar, eggs, vanilla extract, and orange zest together. 2- In a separate container, combine flour, baking soda, and baking powder. 3- Add the flour mixture to the butter mixture gradually (in 3 addition). Whisk in plain yogurt and orange juice in between.

TOPPING:

4- Combine brown sugar, cinnamon powder, and 2.5 oz (70g) butter in a large bowl. Mashing the ingredient together. 5- Stir in dark chocolate chips and walnuts. 6- Grease a bakeware with butter and sprinkle flour over the surface. 7- Transfer the batter to the bakeware. 8- Top with layer of the topping.

9- Preheat oven to 350º F (177º C), bake the streusel for 35 minutes. 10- Lightly cover the bakeware with aluminum foil and continue baking for 35 more minutes. 11- Turn of the heat and let sit for 20 minutes.