→ Streusel Topping
01 -
6 tablespoons melted unsalted butter
02 -
1¼ teaspoons ground cinnamon
03 -
¼ cup packed brown sugar
04 -
3 tablespoons white sugar
05 -
½ teaspoon ginger powder
06 -
Pinch of salt
07 -
1¼ cups plain flour
08 -
⅓ cup chopped walnuts (optional)
09 -
⅓ cup chocolate chips (semi-sweet)
→ Cake Mixture
10 -
2½ cups all-purpose flour
11 -
½ teaspoon baking soda
12 -
2 teaspoons baking powder
13 -
½ teaspoon salt
14 -
¾ cup soft unsalted butter
15 -
1¼ cups white sugar
16 -
¼ cup brown sugar
17 -
3 large eggs, not cold
18 -
2 teaspoons vanilla flavoring
19 -
1 teaspoon fresh lemon juice
20 -
1¼ cups sour cream
21 -
½ cup walnuts, optional
22 -
1 cup semi-sweet chocolate chips