Cinnamon-Swirl Chocolate Chip Bread

INGREDIENTS

2 cups

all-purpose flour (accurately measured)

1 tsp

baking soda

1/2 tsp

salt

2/3 cup

mini semi-sweet chocolate chips

large egg, at room temperature*

3/4 cup

packed light brown sugar (or dark brown)

1/4 cup

granulated sugar

1 cup

buttermilk (no substitutions)

1/3 cup

vegetable oil (or canola; or melted coconut oil)

1 tsp

vanilla extract

1 tbsp

ground cinnamon

1/3 cup

granulated sugar