1 box yellow butter cake mix (Reserve 1 Tbsp. dry cake mix for the streusel)
1 c. sour cream
4 eggs
1/2 c. canola oil
1/4 c. sugar
1 tsp. pure vanilla extract
Streusel:
2 tsp. ground cinnamon
2 Tbsp. light brown sugar
2 Tbsp. melted unsalted butter
1 tsp. pure vanilla extract
1 c. chopped pecans/walnuts
1 Tbsp. dry cake mix
Icing:
1/2 c. confectioner sugar
1 Tbsp. fresh lemon juice
2 Tbsp. evaporated milk
In a large mixing bowl, mix all cake ingredients together using a hand held electric mixer on low-speed. Butter and flour a 9" bundt pan. Pour half of batter in bundt pan. Mix together the streusel ingredients and spoon mixture on top of cake batter, covering with remaining half of batter. Bake at 300° F for 60 minutes or until done. Let cool in pan on wire rack. When cool, mix icing ingredients together and drizzle over cake.