1. After the unsalted butter is softened at room temperature, add in caster sugar and vanilla extract and beat evenly with a blender.
2. Add the whole eggs in portions, and continue to beat them quickly with a mixer to form a uniform cream paste.
3. Sift in the flour and baking powder together, and mix with a rubber spatula.
4.
Add the chocolate chips.
Use a rubber spatula to make a uniform batter in irregular directions.
5. Use a small spoon to remove the right amount of batter about 15g, and scoop it directly onto the baking tray.
6. After the oven is preheated, bake at 170°C for about 25 minutes. After turning off the heat, continue to simmer for about 10 minutes at the remaining temperature.
7. This biscuit is still very simple.
