→ Streusel Topping
01 -
6 tablespoons unsalted butter, cold and cubed
02 -
1/2 cup light brown sugar, packed
03 -
2/3 cup all-purpose flour
04 -
1/4 teaspoon fine sea salt
05 -
1 teaspoon ground cinnamon
06 -
1/2 cup chopped walnuts or pecans
07 -
1/3 cup semisweet chocolate chips
→ Cake Batter
08 -
2 cups all-purpose flour, sifted
09 -
1/2 cup light brown sugar, packed
10 -
1/2 cup granulated sugar
11 -
2 teaspoons baking powder
12 -
1/2 teaspoon baking soda
13 -
1/2 teaspoon fine sea salt
14 -
2 teaspoons instant espresso powder, optional
→ Wet Ingredients
15 -
1 cup sour cream, full fat
16 -
1/3 cup neutral oil, such as vegetable or avocado
17 -
1/3 cup whole milk, at room temperature
18 -
2 large eggs, at room temperature
19 -
2 teaspoons pure vanilla extract
→ Chocolate Layer
20 -
1 cup semisweet chocolate chips