- Preheat the oven to 350 degrees F 
- In a large bowl, cream together butter and sugars until light and fluffy 
- Beat in eggs and vanilla until smooth 
- In a small bowl, whisk together flour, baking powder, salt and baking soda  
- Gradually add flour mixture to wet mixture, scrape down the sides of the bowl after each addition 
- Stir in chocolate chips, reserving a handful for the top 
- Spread the dough evenly in a 10 inch skillet and scatter the reserved chocolate chips on top 
- Bake until the center is cooked through, about 25-30 minutes or until a toothpick inserted comes out clean 
- Remove from oven and cool slightly 
- Serve warm with vanilla ice cream and toppings if you like