¼cupbutter plus 2 tablespoons, softened at room temperature(85 grams)
1cupbrown sugar(200 grams)
1largeegg, at room temperature
1 ½cupseggnog(375 ml)
1teaspoonvanilla extract
Instructions
Preheat oven to 350 degrees F. Grease 9-inch cake pan with cooking spray or butter.
Make the streusel. Melt butter and let cool. Combine butter with oats, brown sugar, chopped pecans, and flour. Stir to combine and set aside.
Combine dry ingredients for cake including flour, baking powder, baking soda, salt, cinnamon, and nutmeg in a large bowl.
Make the cake. In a separate bowl, cream together butter and sugar until fluffy and well combined, about 3 minutes. Add egg and vanilla and beat until combined. Add half of the eggnog, stirring to combine. Add the dry ingredient mix, followed by the remaining eggnog, and stir just until combined.
Pour the batter into the pan. Sprinkle the streusel evenly over the top. Bake for about 50 minutes - 1 hour or until a wooden pick inserted in the center comes out clean. Serve warm or at room temperature.
Notes
You can also bake this cake in a 9x9-inch square cake pan.