Coconut Oil Chocolate Chip Cookies

INGREDIENTS

1 1/2 cups

all-purpose flour

1 1/4 cups

bread flour

1 tsp

baking soda

1 tsp

baking powder

1 tsp

fine sea salt

2 tsp

cornstarch

1 cup

virgin coconut oil, at room temperature (solid)

1/2 cup

granulated sugar

1 1/4 cups

lightly packed brown sugar

2 tsp

vanilla

large eggs plus 1 egg yolk, at room temperature

2 cups

semi sweet chocolate chips