Homemade cake

1. Beat the eggs and sugar well. 2. Then mix yogurt and soda and add them to the mixture, soda. be careful of milk rise and may emerge from the glass:) 3. Add the oil. Finally, add the flour and vanilla, stirring constantly. 4. Brush cake form with oil and sprinkle with a little flour for the cake to get easier once it's ready. 5. Pour cocoa and stir until you get a solid brown color. 6. Bake for about 40-45 minutes in preheated oven at 180 degrees.