Caramel walnut butter cake

Instructions

Make caramel

1. Put sugar and water in a pan, and start cooking over medium heat.
2. Melt the sugar while shaking the pan occasionally. At first, there will be fine bubbles on the surface, which will change to big bubbles.
3. Even while the bubbles are small, the syrup starts to brown from the edges
4. When it's smoking slightly and as brown, as you like, take the pan off the heat.
5. Have the boiling water ready to go, and add it all at once. ( It will splatter, so be careful of burns!)
6. Pour the milk and stir slowly.

Make Butter cake

1. Preparation: Beat the egg well.
2. Line the cake pan with parchment paper.
3. Preheat the oven to 170°C.
4. Combine the flour and baking powder, and sift. Bring the eggs and butter to room temperature.
5. Beat butter and granulated sugar until light and fluffy.
6. Beat the eggs, and add it little by little
7. Add the sifted flour to Step 2, followed by the Walnut.
8. Make sure the mixture is not lumpy.
9. Add the Caramel sauce.
10. Pour the batter into a paper-lined cake tin, and bake at 170°C for about 55 minutes.
11. Let the middle sink when you are pouring the batter into the tin.
12. When it has been in the oven for 10 minutes, make a vertical slit down the middle.
13. Insert a bamboo skewer and when it comes out clean, it's done.