How to know when a cake is cooked

Preparations
Stage 1
How to know when a cake is cooked: Photo of step #1
To test if your cake is fully cooked, open the oven door, pull the cake toward you and insert a knife vertically in the center until reaching the middle of the cake.
Stage 2 -  1 min.
How to know when a cake is cooked: Photo of step #2
If when you remove the blade, there is dough on the blade (see photo) then the cake is not yet done.
Stage 3
How to know when a cake is cooked: Photo of step #3

If the blade is clean after removal, then the cake is done.