Small Batch Chocolate Chip Cookies

5 Preheat the oven to 350°F. Line a large baking sheet with parchment paper.
0 In a large bowl, beat the softened butter or vegan baking stick and the brown sugar until soft and creamy. About 2-3 minutes.
1 Then add in your egg yolk and vanilla extract and beat on high speed for another minute until fluffy.
2 Add the flour mixture, and use a rubber spatula to gently mix it together just until there are no remaining streaks of flour. Do not over-mix the dough after the flour is added.
3 Add the chocolate and stir just until combined.
4 Bake the cookies for 12 minutes, or until the outsides are golden brown and the insides still look a little gooey. 
6 The cookies are best within three hours of removing from the oven, but you can store them in an airtight container for up to a week.