Soft and Puffy Peanut Butter Coconut Oil Cookies

INGREDIENTS

3/4 cup

creamy peanut butter (use Jif, Skippy, Peter Pan or similar; not natural and not homemade peanut butter)

1/2 cup

coconut oil, softened (softened to the consistency of soft butter; not rock hard and not runny or melted, see below)

1 cup

light brown sugar, packed

large egg

1 tbsp

vanilla extract (yes tablespoon, not teaspoon), or to taste

to 1 and 1/4 cups all-purpose flour (see below)

2 tsp

corn starch

1 tsp

baking soda

1/4 tsp

salt, optional and to taste