Ingredients
1 cup (2 sticks) unsalted butter, softened
3/4 cup granulated sugar
3/4 cup packed brown sugar
2 large eggs
2 teaspoons vanilla extract
2 1/4 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
2 cups semisweet chocolate chips (or chunks)

Instructions
Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
Cream butter & sugars: In a large bowl, beat together the butter, granulated sugar, and brown sugar until light and fluffy.
Add wet ingredients: Mix in the eggs one at a time, then stir in vanilla extract.
Combine dry ingredients: In a separate bowl, whisk flour, baking soda, baking powder, and salt. Gradually mix into the wet ingredients.
Fold in chocolate chips until evenly distributed.
Scoop dough by rounded tablespoon (or use a cookie scoop) onto the baking sheet, leaving about 2 inches between each cookie.
Bake 9–12 minutes or until edges are golden brown but centers are still soft.
Cool on sheet for 2 minutes, then transfer to a wire rack.