Start by preheating your oven today. Set it to 350 degrees Fahrenheit. This ensures a very even bake. Grease your 9-inch cake pan well. You can use butter or spray. Line the bottom with parchment paper.
Step 2:
Melt your butter in the bowl. You can use a microwave here. Let the butter cool a little. Add the brown and white sugar. Stir them together very well now. The mixture should look very smooth.
Step 3:
Crack the egg into the bowl. Add the vanilla extract as well. Stir the mixture very quickly now. The batter should look quite glossy. Make sure the egg is mixed. No yellow streaks should remain visible.
Step 4:
Add the flour and baking soda. Sprinkle the salt in the bowl. Stir the dough with your spoon. Do this until the flour vanishes. Do not stir it too much. Just make sure it is combined.
Step 5:
Pour in the sweet chocolate chips. Fold them in very gently now. Save a few chips for later. They look great on the top. The dough will be very thick. This is exactly how it should look.
Step 6:
Press the dough into the pan. Use the back of your spoon. Make the top very flat and even. Sprinkle the extra chips on top. This makes it look very professional. Now it is ready for heat.
Step 7:
Place the pan in the oven. Bake it for twenty-five minutes long. The edges should be golden brown. The center will look slightly soft. This is the secret to moisture. Do not overbake the cookie cake.
Notes
Do not overbake to keep it soft.
Let it cool before you slice it.
Add extra chips on top for looks.
Measure your flour with a flat spoon.
Grease the sides of the pan well.
Use dark brown sugar for more chew.
Add nuts if you like extra crunch.
Check the oven temperature with a tool.
Keep the butter from being too hot.
Keyword One Bowl Chocolate Chip Cookie Cake Recipe