In the mixing bowl, add in the butter and sugar. Mix it on low speed using a hand mixer for 2 minutes until the sugar disappears. Then increase the speed to medium and mix for 15 minutes.
It is important to mix the butter and sugar well, until its light and fluffy, which you will see in 15 minutes.
Add in the eggs one by one, and mix until the yolks disappear.
Add in the sifted dry ingredients spoon by spoon. This is another important step to make a good butter cake.
Dissolve the coffee powder in warm milk.
Add the milk and vanilla extract and continue mixing for 3-5 minutes.
Pour the batter into a baking tin and add the chopped walnuts on the top.
10. Bake for 50-55 minutes at 160°C.
11. Check after 50 minutes if a toothpick inserted in the middle of the cake comes out clean.
12. After taking it out of the oven, cool the cake for 20 minutes and then slice
Notes
• Use a hand mixer/stand mixer throughout the mixing process. • To make sure the cake is light and soft, mix the butter and sugar well, for atleast 15 minutes. • Butter cakes take a long time to bake, so do not open the oven before 50 minutes