Ingredients
Method
Preparation
- Preheat the oven to 350°F (177°C) and line baking sheets with parchment paper.
Combine Ingredients
- In a large bowl, whisk together the cake mix, flour, baking soda, and salt until evenly blended.
- In a separate medium bowl, whisk melted butter, granulated sugar, and brown sugar until smooth.
- Whisk in the eggs, vanilla extract, and sour cream until the mixture is silky.
- Pour the wet ingredients into the dry ingredients and stir until just combined.
- Fold in the chocolate chips and rainbow sprinkles.
Chill
- Cover the dough and chill in the refrigerator for 1 to 2 hours.
Bake
- Scoop dough by rounded tablespoons (about 2 Tbsp each) and place 2 inches apart on prepared sheets.
- Bake for 9–11 minutes, until edges are set and centers look slightly underbaked.
- Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Notes
For firmer cookies, bake an additional minute or chill the dough longer.
Dough can be refrigerated up to 3 days or frozen for up to 3 months.
