Preheat the oven to 350 °F (175 °C). Line a baking sheet with a piece of parchment paper.
In a large mixing bowl with a stand mixer, beat together the oil, sugar and brown sugar until light and fluffy. Beat in the eggs and vanilla until well combined.
1 cup canola oil, 1 cup brown sugar, 1/2 cup granulated sugar, 2 large, 1 tablespoon vanilla extract
Sprinkle the baking soda and salt on top, beat until combined, and then add in the flour on low speed.
1 teaspoon baking soda, 1 teaspoon salt, 3 cups King Arthur GF flour
Stir in 1 3/4 cups (not 2 1/4 cups like it says below) of chocolate chips until combined.
2 1/4 cups semi-sweet chocolate chips, divided
Form 1/4 cup (75-gram) balls. The dough is pretty soft but I could still form balls. Not very firm, but good enough. Press 8-9 chocolate chips on top of each one, if desired.
Place 4" apart on the prepared baking sheet.
Bake for 12-16 minutes or until lightly browned around the edge.
Let cool completely on the baking sheet. Store cooled cookies in an airtight container for up to 5 days. The baked cookies can also be frozen or you can roll the dough into balls and freeze those for up to 3 months.